Hadith 622
Al-Bara (b. Azib)said; They (the Companions) used to pray along with the Messenger of Allah (may peace be upon him). When he bowed, they bowed; and when he said, “Allah listens to him who praises him”, they remained standing until they saw that he placed his placed his forehead on the ground: then they would follow him (may peace be upon him)
حَدَّثَنَا الرَّبِيعُ بْنُ نَافِعٍ، حَدَّثَنَا أَبُو إِسْحَاقَ، - يَعْنِي الْفَزَارِيَّ - عَنْ أَبِي إِسْحَاقَ، عَنْ مُحَارِبِ بْنِ دِثَارٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ يَزِيدَ، يَقُولُ عَلَى الْمِنْبَرِ حَدَّثَنِي الْبَرَاءُ، أَنَّهُمْ كَانُوا يُصَلُّونَ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَإِذَا رَكَعَ رَكَعُوا وَإِذَا قَالَ " سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ " . لَمْ نَزَلْ قِيَامًا حَتَّى يَرَوْهُ قَدْ وَضَعَ جَبْهَتَهُ بِالأَرْضِ ثُمَّ يَتَّبِعُونَهُ صلى الله عليه وسلم .