حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي أَبِي ثَنَا عَفَّانُ ثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحْمَنِ الطَّفَاوِيُّ ثَنَا سَعِيدٌ الْجُرَيْرِيُّ عَنْ رَجُلٍ مِنْ بَنِي تَمِيمٍ وَأَحْسَنَ الثَّنَاءَ عَلَيْهِ عَنْ أَبِيهِ أَوْ عَمِّهِ قَالَ: صَلَّيْتُ خَلْفَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ، فَسَأَلْنَاهُ عَنْ قَدْرِ رُكُوعِهِ وَسُجُودِهِ، فَقَالَ: قَدْرَ مَا يَقُولُ الرَّجُلُ سُبْحَانَ اللَّهِ وَبِحَمْدِهِ ثَلَاثًا
A man from Banu Tamim narrates from his father or uncle, who says: I performed prayer following the leadership of the Messenger of Allah, peace and blessings be upon him. (Upon hearing this) we asked him about the duration of the bowing (ruku) and prostration (sujud) of the Prophet, peace and blessings be upon him. He said: It was such that a person could say three times: Subhan Allah wa bihamdihi.