Hadith 4:226
Al-Bara' reported:
They (the Companions) said prayer with the Messenger of Allah (ﷺ), and they bowed when he (the Holy Prophet) bowed. and when he raised his head after bowing, he pronounced:" Allah listened to him who praised Him," and we kept standing till we saw him placing his face on the ground and then we followed him.
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحْمَنِ بْنِ سَهْمٍ الأَنْطَاكِيُّ، حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُحَمَّدٍ أَبُو إِسْحَاقَ الْفَزَارِيُّ، عَنْ أَبِي إِسْحَاقَ الشَّيْبَانِيِّ، عَنْ مُحَارِبِ بْنِ دِثَارٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ يَزِيدَ، يَقُولُ عَلَى الْمِنْبَرِ حَدَّثَنَا الْبَرَاءُ، أَنَّهُمْ كَانُوا يُصَلُّونَ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَإِذَا رَكَعَ رَكَعُوا وَإِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ فَقَالَ " سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ " لَمْ نَزَلْ قِيَامًا حَتَّى نَرَاهُ قَدْ وَضَعَ وَجْهَهُ فِي الأَرْضِ ثُمَّ نَتَّبِعُهُ .
Original Reference: Sahih Muslim 474 c