Al-Bara (b. Azib)said; They (the Companions) used to pray along with the Messenger of Allah ﷺ. 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 ﷺ

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 ﷺ فَإِذَا رَكَعَ رَكَعُوا وَإِذَا قَالَ " سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ " . لَمْ نَزَلْ قِيَامًا حَتَّى يَرَوْهُ قَدْ وَضَعَ جَبْهَتَهُ بِالأَرْضِ ثُمَّ يَتَّبِعُونَهُ ﷺ .