[Machine] The Messenger of Allah ﷺ said: "When you come and find us in prostration, then prostrate and do not count anything as a prayer. And whoever catches a unit of prayer has caught the entire prayer." This was narrated specifically by Yahya ibn Abi Sulayman al-Madini, and a similar narration with a weaker chain of narrators has been transmitted from Abu Huraira.  

قَالَ رَسُولُ اللهِ ﷺ إِذَا جِئْتُمْ وَنَحْنُ سُجُودٌ فَاسْجُدُوا وَلَا تَعُدُّوا شَيْئًا وَمَنْ أَدْرَكَ الرَّكْعَةَ فَقَدْ أَدْرَكَ الصَّلَاةَ تَفَرَّدَ بِهِ يَحْيَى بْنُ أَبِي سُلَيْمَانَ الْمَدِينِيُّ وَقَدْ رُوِيَ بِإِسْنَادٍ آخَرَ أَضْعَفَ مِنْ ذَلِكَ عَنْ أَبِي هُرَيْرَةَ  

[Machine] The Messenger of Allah ﷺ said: "Whoever catches a raka'ah (unit of prayer) before the imam stands up straight, then he has caught it." Abu Ahmad said: "This additional statement "before the imam stands up straight" is said by Yahya bin Humaid from Qura and he is Egyptian. Abu Ahmad said: "I heard Ibn Hammad say that Al-Bukhari said: Yahya bin Humaid from Qura from Ibn Shihab heard it from Ibn Wahb who is Egyptian, and his hadith is not continuously transmitted." Abu Ahmad said: "And Jundaidi narrated from Al-Bukhari, he said: Yahya bin Abi Sulayman Al-Madani from Al-Maqburi and Ibn Abi Atab, a discredited narrator of hadith." The sheikh said: "And it has been narrated with a Mursal isnad (broken chain of narrators)."  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ مَنْ أَدْرَكَ رَكْعَةً مِنَ الصَّلَاةِ فَقَدْ أَدْرَكَهَا قَبْلَ أَنْ يُقِيمَ الْإِمَامُ صُلْبَهُ قَالَ أَبُو أَحْمَدَ هَذِهِ الزِّيَادَةُ قَبْلَ أَنْ يُقِيمَ الْإِمَامُ صُلْبَهُ يَقُولُهَا يَحْيَى بْنُ حُمَيْدٍ عَنْ قُرَّةَ وَهُوَ مِصْرِيٌّ قَالَ أَبُو أَحْمَدَ سَمِعْتُ ابْنَ حَمَّادٍ يَقُولُ قَالَ الْبُخَارِيُّ يَحْيَى بْنُ حُمَيْدٍ عَنْ قُرَّةَ عَنِ ابْنِ شِهَابٍ سَمِعَ مِنْهُ ابْنُ وَهْبٍ مِصْرِيٌّ لَا يُتَابَعُ فِي حَدِيثِهِ قَالَ أَبُو أَحْمَدَ وَثنا الْجُنَيْدِيُّ ثنا الْبُخَارِيُّ قَالَ يَحْيَى بْنُ أَبِي سُلَيْمَانَ الْمَدَنِيُّ عَنِ الْمَقْبُرِيِّ وَابْنِ أَبِي عَتَّابٍ مُنْكَرُ الْحَدِيثِ قَالَ الشَّيْخُ وَقَدْ رُوِيَ بِإِسْنَادٍ مُرْسَلٍ  

[Machine] On the authority of the Prophet Muhammad ﷺ , he said: "When you come [to join the congregational prayer] and the imam is in the state of ruku' (bowing), then you should also bow. And if the imam is in the state of sujood (prostration), then you should also prostrate. And do not precede the imam in performing sujood if he has not yet performed ruku'."  

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا جِئْتُمْ وَالْإِمَامُ رَاكِعٌ فَارْكَعُوا وَإِنْ كَانَ سَاجِدًا فَاسْجُدُوا وَلَا تَعْتَدُّوا بِالسُّجُودِ إِذَا لَمْ يَكُنْ مَعَهُ الرُّكُوعُ  

[Machine] The Prophet ﷺ said, "Whoever does not catch a rakah (unit of prayer) has not caught the entire prayer." It was also narrated about him by the companions of the Messenger of Allah ﷺ .  

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لَمْ يُدْرِكِ الرَّكْعَةَ لَمْ يُدْرِكِ الصَّلَاةَ وَرُوِيَ فِيهِ عَنْ أَصْحَابِ رَسُولِ اللهِ ﷺ  

[Machine] Whoever does not catch up with the imam while he is bowing, did not catch that unit (of prayer).  

مَنْ لَمْ يُدْرِكِ الْإِمَامَ رَاكِعًا لَمْ يُدْرِكْ تِلْكَ الرَّكْعَةَ  

[Machine] Whoever does not catch up with the prayer unit, should not count it by prostration.  

مَنْ لَمْ يُدْرِكِ الرَّكْعَةَ فَلَا يَعْتَدَّ بِالسُّجُودِ  

[Machine] That the imam raises his head indicates that he has completed that unit of prayer.  

أَنْ يَرْفَعَ الْإِمَامُ رَأْسَهُ فَقَدْ أَدْرَكَ تِلْكَ الرَّكْعَةَ  

[Machine] Abdullah ibn Umar used to say, "If you miss the Rak'ah, then you have missed the prostration."  

أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ كَانَ يَقُولُ إِذَا فَاتَتْكَ الرَّكْعَةُ فَقَدْ فَاتَتْكَ السَّجْدَةُ  

[Machine] That the imam raises his head means he has completed the prostration.  

أَنْ يَرْفَعَ الْإِمَامُ رَأْسَهُ فَقَدْ أَدْرَكَ السَّجْدَةَ  

[Machine] "Abu Huraira used to say: 'Whoever catches the rakah (unit of prayer) has caught the prostration (sujood), and whoever misses the recitation of the mother of the Quran (Surah Al-Fatiha), has missed a great deal of good.'"  

أَنَّ أَبَا هُرَيْرَةَ كَانَ يَقُولُ مَنْ أَدْرَكَ الرَّكْعَةَ فَقَدْ أَدْرَكَ السَّجْدَةَ وَمَنْ فَاتَتْهُ قِرَاءَةُ أُمِّ الْقُرْآنِ فَقَدْ فَاتَهُ خَيْرٌ كَثِيرٌ