Allah, the Exalted, would awaken the Messenger of Allah ﷺ at night. When the dawn came, he would his finish daily round of recital.  

إِنْ كَانَ رَسُولُ اللَّهِ ﷺ لَيُوقِظُهُ اللَّهُ ﷻ بِاللَّيْلِ فَمَا يَجِيءُ السَّحَرُ حَتَّى يَفْرُغَ مِنْ حِزْبِهِ  

I asked 'Aishah about the prayer of the Messenger of Allah ﷺ, and I said to her: At what time he prayed at night ? She said: When he heard the cock crow, he got up and prayed.  

عَنْ صَلاَةِ رَسُولِ اللَّهِ ﷺ فَقُلْتُ لَهَا أَىُّ حِينٍ كَانَ يُصَلِّي قَالَتْ كَانَ إِذَا سَمِعَ الصُّرَاخَ قَامَ فَصَلَّى  

When he was with me he would sleep at dawn. By this she referred to the Prophet ﷺ.  

مَا أَلْفَاهُ السَّحَرُ عِنْدِي إِلاَّ نَائِمًا تَعْنِي النَّبِيَّ ﷺ  

When anything distressed the Prophet ﷺ, he prayed.  

كَانَ النَّبِيُّ ﷺ إِذَا حَزَبَهُ أَمْرٌ صَلَّى  

I used to live with the Messenger of Allah ﷺ at night. I would bring water for his ablution and his need. He asked: Ask me. I said: Your company in Paradise. He said: Is there anything other than that ? I said: It is only that. He said: Help me for yourself by making prostrations abundantly.  

سَمِعْتُ رَبِيعَةَ بْنَ كَعْبٍ الأَسْلَمِيَّ يَقُولُ كُنْتُ أَبِيتُ مَعَ رَسُولِ اللَّهِ ﷺ آتِيهِ بِوَضُوئِهِ وَبِحَاجَتِهِ فَقَالَ سَلْنِي فَقُلْتُ مُرَافَقَتَكَ فِي الْجَنَّةِ قَالَ أَوَغَيْرَ ذَلِكَ قُلْتُ هُوَ ذَاكَ قَالَ فَأَعِنِّي عَلَى نَفْسِكَ بِكَثْرَةِ السُّجُودِ  

(This verse means) the prayer and vigil at night.  

عَنِ الْمَضَاجِعِ يَدْعُونَ رَبَّهُمْ خَوْفًا وَطَمَعًا وَمِمَّا رَزَقْنَاهُمْ يُنْفِقُونَ } قَالَ كَانُوا يَتَيَقَّظُونَ مَا بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ يُصَلُّونَ وَكَانَ الْحَسَنُ يَقُولُ قِيَامُ اللَّيْلِ  

They (the people) used to pray between the Maghrib and 'Isha. The version of Yahya adds: The verse tatajafa junubuhum also means so.  

عَنْ أَنَسٍ فِي قَوْلِهِ جَلَّ وَعَزَّ { كَانُوا قَلِيلاً مِنَ اللَّيْلِ مَا يَهْجَعُونَ } قَالَ كَانُوا يُصَلُّونَ فِيمَا بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ زَادَ فِي حَدِيثِ يَحْيَى وَكَذَلِكَ { تَتَجَافَى جُنُوبُهُمْ }