Sa’d reported that he heard his father or his uncle say ; I witnessed the Prophet ﷺ while offering prayer. He used to stay in his bowing and his prostration as long as one uttera the words “Glory be to Allah and praise be to Him” three times.  

رَمَقْتُ النَّبِيَّ ﷺ فِي صَلاَتِهِ فَكَانَ يَتَمَكَّنُ فِي رُكُوعِهِ وَسُجُودِهِ قَدْرَ مَا يَقُولُ سُبْحَانَ اللَّهِ وَبِحَمْدِهِ ثَلاَثًا  

Sa’d reported that he heard his father or his uncle say ; I witnessed the Prophet ﷺ while offering prayer. He used to stay in his bowing and his prostration as long as one uttera the words “Glory be to Allah and praise be to Him” three times. (Using translation from Abū Dāʾūd 885)   

رَمَقْتُ رَسُولَ اللهِ ﷺ فِي صَلَاتِهِ فَكَانَ يَمْكُثُ فِي رُكُوعِهِ وَسُجُودِهِ قَدْرَ مَا يَقُولُ سُبْحَانَ اللهِ وَبِحَمْدِهِ ثَلَاثًا  

[Machine] From a man from the tribe of Tamim, who praised him greatly about his father or uncle, he said: I prayed behind the Messenger of Allah ﷺ and we asked him about the proper manner of bowing and prostrating. He said, "The measure of what a person says is glorified be Allah and praised be He, three times."  

عَنْ رَجُلٍ مِنْ بَنِي تَمِيمٍ وَأَحْسَنَ الثَّنَاءَ عَلَيْهِ عَنْ أَبِيهِ أَوْ عَمِّهِ قَالَ صَلَّيْتُ خَلْفَ رَسُولِ اللهِ ﷺ فَسَأَلْنَاهُ عَنْ قَدْرِ رُكُوعِهِ وَسُجُودِهِ فَقَالَ قَدْرُ مَا يَقُولُ الرَّجُلُ سُبْحَانَ اللهِ وَبِحَمْدِهِ ثَلَاثًا  

Sa’d reported that he heard his father or his uncle say ; I witnessed the Prophet ﷺ while offering prayer. He used to stay in his bowing and his prostration as long as one uttera the words “Glory be to Allah and praise be to Him” three times. (Using translation from Abū Dāʾūd 885)   

رَمَقْتُ النَّبِيَّ ﷺ فِي صَلَاتِهِ فَكَانَ يَتَمَكَّنُ فِي رُكُوعِهِ وَسُجُودِهِ قَدْرَ مَا يَقُولُ سُبْحَانَ اللهِ وَبِحَمْدِهِ ثَلَاثًا