Arabic (Original)
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحْمَنِ الطُّفَاوِيُّ حَدَّثَنَا سَعِيدٌ الْجُرَيْرِيُّ عَنْ رَجُلٍ مِنْ بَنِي تَمِيمٍ وَأَحْسَنَ الثَّنَاءَ عَلَيْهِ عَنْ أَبِيهِ أَوْ عَمِّهِ قَالَ صَلَّيْتُ خَلْفَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَسَأَلْنَاهُ عَنْ قَدْرِ رُكُوعِهِ وَسُجُودِهِ فَقَالَ قَدْرُ مَا يَقُولُ الرَّجُلُ سُبْحَانَ اللَّهِ وَبِحَمْدِهِ ثَلَاثًا.
English Translation
Muhammad ibn Abd al-Rahman al-Tufawi narrated to us, Sa'id al-Jurayri narrated to us, from a man of Banu Tamim - and he praised him well - from his father or his uncle, who said: I prayed behind the Messenger of Allah (peace and blessings be upon him), and we asked him about the length of his bowing and prostration. He said, "The measure of a man saying, 'Glory be to Allah and praise be to Him,' three times."