Messenger of Allah ﷺ used to pray eleven rakʿat at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Messenger of Allah ﷺ raised his head. He also used to pray two rakʿat (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصَلِّي إِحْدَى عَشْرَةَ رَكْعَةً كَانَتْ تِلْكَ صَلاَتَهُ تَعْنِي بِاللَّيْلِ فَيَسْجُدُ السَّجْدَةَ مِنْ ذَلِكَ قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ وَيَرْكَعُ رَكْعَتَيْنِ قَبْلَ صَلاَةِ الْفَجْرِ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلصَّلاَةِ  

Messenger of Allah ﷺ used to offer eleven rakʿat and that was his prayer. He used to prolong the prostration to such an extent that one could recite fifty verses (of the Qur'an) before he would lift his head. He used to pray two rakʿat (Sunna) before the Fajr prayer and then used to lie down on his right side till the call-maker came and informed him about the prayer.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصَلِّي إِحْدَى عَشْرَةَ رَكْعَةً كَانَتْ تِلْكَ صَلاَتَهُ يَسْجُدُ السَّجْدَةَ مِنْ ذَلِكَ قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ وَيَرْكَعُ رَكْعَتَيْنِ قَبْلَ صَلاَةِ الْفَجْرِ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُنَادِي لِلصَّلاَةِ  

"Between the time when he finished 'Isha' prayer and Fajr, the Prophet ﷺ used to pray eleven Rak'ahs, saying the Taslim after each two Rak'ahs, then praying Witr as one Rak'ah. He would prostrate for as long as it takes one of you to recite fifty verses, then he would raise his head. When the Mu'adhdhin finished the call to Fajr prayer and he could see the dawn, he would pray two brief Rak'ahs, then he would go out with him." Some of these narrators (Ibn Abi Dhi'b, Yunus and 'Amr bin Al-Harith) added some phrases not mentioned by the others in the Hadith.  

كَانَ النَّبِيُّ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلاَةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ بَيْنَ كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ سَجْدَةً قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً ثُمَّ يَرْفَعُ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلاَةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرُ رَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ بِالإِقَامَةِ فَيَخْرُجُ مَعَهُ وَبَعْضُهُمْ يَزِيدُ عَلَى بَعْضٍ فِي الْحَدِيثِ  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him  

كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلاَةِ الْعِشَاءِ إِلَى أَنْ يَنْصَدِعَ الْفَجْرُ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ مِنْ كُلِّ ثِنْتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَمْكُثُ فِي سُجُودِهِ قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ بِالأُولَى مِنْ صَلاَةِ الْفَجْرِ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ  

It was narrated that ‘Aishah said, and this is the Hadith of Abu Bakr. “During the period after he finished the ‘Isha’ prayer until the Fajr, the Prophet ﷺ used to pray eleven Rak’ah, saying the Salam after each two Rak’ah and praying Witr with one Rak’ah. He would prostrate for as long as it takes anyone of you to recite fifty Verses before he would raise his head. When the Mu’adh-dhin fell silent after the first Adhan for the Subh prayer, he would get up and pray two brief Rak’ah.”  

كَانَ النَّبِيُّ ﷺ يُصَلِّي مَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلاَةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ اثْنَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ فِيهِنَّ سَجْدَةً بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنَ الأَذَانِ الأَوَّلِ مِنْ صَلاَةِ الصُّبْحِ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)   

كَانَ النَّبِيُّ ﷺ يُصَلِّي فِيمَا بَيْنَ عِشَاءِ الْآخِرَةِ إِلَى أَنْ يَنْصَدِعَ الْفَجْرُ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَمْكُثُ فِي سُجُودِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ بِخَمْسِينَ آيَةً فَإِذَا سَكَتَ الْمُؤَذِّنُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ  

Messenger of Allah ﷺ used to pray eleven rakʿat at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Messenger of Allah ﷺ raised his head. He also used to pray two rakʿat (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer. (Using translation from Bukhārī 994)  

أَنَّ النَّبِيَّ ﷺ كَانَ يُصَلِّي إِحْدَى عَشْرَةَ رَكْعَةً بِاللَّيْلِ كَانَتْ تِلْكَ صَلَاتَهُ يَسْجُدُ السَّجْدَةَ مِنْ ذَلِكَ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ وَيَرْكَعُ رَكْعَتَيْنِ قَبْلَ صَلَاةِ الْفَجْرِ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُنَادِي لِلصَّلَاةِ  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)   

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي مَا بَيْنَ أَنْ يَفْرَغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ ثِنْتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ فِي سَبْحَتِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنَ الْأَذَانِ الْأَوَّلِ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ فَيَخْرُجَ مَعَهُ  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)   

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي مَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ وَهِيَ الَّتِي تُسَمُّونَ أَوْ تَدْعُونَ الْعَتَمَةَ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ سَجْدَةً يُسَلِّمُ بَيْنَ كُلِّ سَجْدَتَيْنِ وَيُوتِرُبِوَاحِدَةٍ وَيَسْجُدُ فِي سُبْحَتِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ بِالْأُولَى مِنْ صَلَاةِ الصُّبْحِ رَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ فَيَأْتِيهِ الْمُؤَذِّنُ فَيَخْرُجُ مَعَهُ  

[Machine] The Prophet ﷺ used to pray from the evening (Isha) prayer until the dawn (Fajr) prayer eleven voluntary units (raka'at), and he would conclude every two units with the Tasleem (saying Assalamu Alaikum). He would perform the Witr prayer with one unit. When the Mu'athin finished the Adhan, he would perform two light units (raka'at), then lie down until the Mu'athin comes to him and he would go out with him.  

كَانَ النَّبِيُّ ﷺ «يُصَلِّي مَا بَيْنَ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ يُوتِرُ بِوَاحِدَةٍ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنَ الْأَذَانِ رَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ فَيَخْرُجُ مَعَهُ»  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)   

«كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي مَا بَيْنَ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ فِي سُبْحَتِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنَ الْأَذَانِ الْأَوَّلِ رَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ فَيَخْرُجَ مَعَهُ»  

[Machine] The Messenger of Allah ﷺ used to pray eleven rak'ahs between the completion of 'Isha prayer, which is when people are called to the darkness of dawn, and the dawn prayer. In each set of two rak'ahs, he would recite the salaam. Additionally, he would perform one witr rak'ah. When the muezzin finished calling for the dawn prayer and the dawn appeared to him, and the muezzin came to him, he would stand and perform two light rak'ahs, then lie down on his right side until the muezzin came to him with the call to establish the prayer.  

«كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ وَهِيَ الَّتِي يَدْعُو النَّاسُ الْعَتَمَةَ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلَاةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرُ وَجَاءَهُ الْمُؤَذِّنُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ وَاضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ بِالْإِقَامَةِ»  

Messenger of Allah ﷺ used to pray eleven rakʿat at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Messenger of Allah ﷺ raised his head. He also used to pray two rakʿat (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer. (Using translation from Bukhārī 994)  

«أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصَلِّي إِحْدَى عَشْرَةَ رَكْعَةً بِاللَّيْلِ فَكَانَتْ تِلْكَ صَلَاتُهُ يَسْجُدُ السَّجْدَةَ مِنْ ذَلِكَ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ وَيَرْكَعُ رَكْعَتَيْنِ قَبْلَ صَلَاةِ الْفَجْرِ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلصَّلَاةِ»  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)  

«كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى أَنْ يَنْصَدِعَ الْفَجْرُ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ مِنْ كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَمْكُثُ فِي سُجُودِهِ قَدْرَ مَا يَقْرَأُ الرَّجُلُ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْأَذَانُ مِنْ صَلَاةِ الْفَجْرِ قَامَ فَرَكَعَ رَكْعَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ»  

"Between the time when he finished 'Isha' prayer and Fajr, the Prophet ﷺ used to pray eleven Rak'ahs, saying the Taslim after each two Rak'ahs, then praying Witr as one Rak'ah. He would prostrate for as long as it takes one of you to recite fifty verses, then he would raise his head. When the Mu'adhdhin finished the call to Fajr prayer and he could see the dawn, he would pray two brief Rak'ahs, then he would go out with him." Some of these narrators (Ibn Abi Dhi'b, Yunus and 'Amr bin Al-Harith) added some phrases not mentioned by the others in the Hadith. (Using translation from Nasāʾī 685)  

كَانَ رَسُولُ اللهِ ﷺ «يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ سَجْدَةً قَدْرَ مَا يُقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلَاةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرَ قَامَ فَرَكَعَ رَكْعَتَيْنِ وَاضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلْإِقَامَةِ فَيَخْرُجُ مَعَهُ» وَبَعْضُهُمْ يَزِيدُ عَلَى بَعْضٍ فِي قِصَّةِ الْحَدِيثِ  

"Between the time when he finished 'Isha' prayer and Fajr, the Prophet ﷺ used to pray eleven Rak'ahs, saying the Taslim after each two Rak'ahs, then praying Witr as one Rak'ah. He would prostrate for as long as it takes one of you to recite fifty verses, then he would raise his head. When the Mu'adhdhin finished the call to Fajr prayer and he could see the dawn, he would pray two brief Rak'ahs, then he would go out with him." Some of these narrators (Ibn Abi Dhi'b, Yunus and 'Amr bin Al-Harith) added some phrases not mentioned by the others in the Hadith. (Using translation from Nasāʾī 685)  

كَانَ رَسُولُ اللهِ ﷺ «يُصَلِّي فِيمَا أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ مِنْ كُلِّ رَكْعَتَيْنِ ثُمَّ يُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ سَجْدَةً قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلَاةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلْإِقَامَةِ فَيَخْرُجَ مَعَهُمْ» وَبَعْضُهُمْ يَزِيدُ عَلَى بَعْضٍ فِي قِصَّةِ الْحَدِيثِ  

[Machine] Aisha, the wife of the Prophet ﷺ , said: The Prophet ﷺ used to pray eleven Rak'ahs (units of prayer) between the end of the night prayer (Isha) and the dawn prayer (Fajr). He would offer the Salaam (concluding the prayer) after every two Rak'ahs, and he would perform the Witr prayer (an odd-numbered prayer) with one Rak'ah. He would also make a long prostration, equivalent to reciting fifty verses of the Qur'an, before raising his head (from prostration). When the caller to prayer finishes the Fajr prayer and the dawn becomes clear to him, the Prophet ﷺ would get up and pray two light Rak'ahs, and then he would lie down on his right side until the caller to prayer comes to give the call for the Iqamah (the final announcement before prayer). He would then come out with the caller to prayer. Some of them add a little to this.  

عَنْ عَائِشَةَ زَوْجِ النَّبِيِّ ﷺ قَالَتْ كَانَ النَّبِيُّ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ مِنْ كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ سَجْدَةً قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلَاةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلْإِقَامَةِ فَيَخْرُجَ مَعَهُ قَالَ وَبَعْضُهُمْ يَزِيدُ عَلَى بَعْضٍ  

Messenger of Allah ﷺ used to pray eleven rakʿat at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Messenger of Allah ﷺ raised his head. He also used to pray two rakʿat (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer. (Using translation from Bukhārī 994)   

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُصَلِّي إِحْدَى عَشْرَةَ رَكْعَةً فَكَانَتْ تِلْكَ صَلَاتَهُ يَسْجُدُ السَّجْدَةَ مِنْ ذَلِكَ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ وَيَرْكَعُ رَكْعَتَيْنِ قَبْلَ صَلَاةِ الْفَجْرِ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يُنَادِيَ الْمُنَادِي بِالصَّلَاةِ رُوَاهُ الْبُخَارِيُّ فِي الصَّحِيحِ عَنْ أَبِي الْيَمَانِ  

Between the time when the Messenger of Allah ﷺ finished the night prayer till the dawn broke, he used to pray eleven rak'ahs, uttering the salutation at the end of every two and observing the witr with a single one, and during that he would make a prostration about as long a one of you would take to recite fifty verses before raising his head. When the mu'adhdhin finished making the call for the dawn prayer, he stood up and prayed two short rak'ahs, then he lay down on his right side till the mu'adhdhin came to him (Using translation from Abū Dāʾūd 1336)   

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي فِيمَا بَيْنَ صَلَاةِ الْعِشَاءِ الْآخِرَةِ إِلَى أَنْ يَنْصَدِعَ الْفَجْرُ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ فِي كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَمْكُثُ فِي سُجُودِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً فَإِذَا سَكَتَ الْمُؤَذِّنُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ  

"Between the time when he finished 'Isha' prayer and Fajr, the Prophet ﷺ used to pray eleven Rak'ahs, saying the Taslim after each two Rak'ahs, then praying Witr as one Rak'ah. He would prostrate for as long as it takes one of you to recite fifty verses, then he would raise his head. When the Mu'adhdhin finished the call to Fajr prayer and he could see the dawn, he would pray two brief Rak'ahs, then he would go out with him." Some of these narrators (Ibn Abi Dhi'b, Yunus and 'Amr bin Al-Harith) added some phrases not mentioned by the others in the Hadith. (Using translation from Nasāʾī 685)   

عَنْ عَائِشَةَ زَوْجِ النَّبِيِّ ﷺ قَالَتْ كَانَ النَّبِيُّ ﷺ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرُغَ مِنْ صَلَاةِ الْعِشَاءِ إِلَى الْفَجْرِ إِحْدَى عَشْرَةَ رَكْعَةً يُسَلِّمُ مِنْ كُلِّ رَكْعَتَيْنِ وَيُوتِرُ بِوَاحِدَةٍ وَيَسْجُدُ سَجْدَةً قَدْرَ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَعَ رَأْسَهُ فَإِذَا سَكَتَ الْمُؤَذِّنُ مِنْ صَلَاةِ الْفَجْرِ وَتَبَيَّنَ لَهُ الْفَجْرُ قَامَ فَرَكَعَ رَكْعَتَيْنِ خَفِيفَتَيْنِ ثُمَّ اضْطَجَعَ عَلَى شِقِّهِ الْأَيْمَنِ حَتَّى يَأْتِيَهُ الْمُؤَذِّنُ لِلْإِقَامَةِ فَيَخْرُجَ مَعَهُ قَالَ وَبَعْضُهُمْ يَزِيدُ عَلَى بَعْضٍ فِي قِصَّةِ الْحَدِيثِ  

"عَنْ عَائِشَةَ: أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُصَلِّي فِيمَا بَيْنَ أَنْ يَفْرَغَ مِنَ العِشَاءِ الآخِرَةِ إِلَى أَنْ يَنْصَدِعَ الْفَجْرُ إِحْدَى عَشْرَةَ رَكَعْةً، يُسَلِّمُ مِنْ كُلِّ ثِنْتَيْنِ، وَيُوتِرُ بِوَاحِدَةٍ، وَيَمْكُثُ فِي سُجُودِهِ بِقَدْرِ مَا يَقْرَأُ أَحَدُكُمْ خَمْسِينَ آيَةً قَبْلَ أَنْ يَرْفَع رَأسَهُ".