"I have never seen anyone whose prayer more closely resembles the prayer of the Messenger of Allah ﷺ than this young man- meaning 'Umar bin Abdul-aziz. And we estimated that when bowing he said the Tasbih ten times and when prostrating he said the Tasbih ten times."  

سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ مَا رَأَيْتُ أَحَدًا أَشْبَهَ صَلاَةً بِصَلاَةِ رَسُولِ اللَّهِ ﷺ مِنْ هَذَا الْفَتَى يَعْنِي عُمَرَ بْنَ عَبْدِ الْعَزِيزِ فَحَزَرْنَا فِي رُكُوعِهِ عَشْرَ تَسْبِيحَاتٍ وَفِي سُجُودِهِ عَشْرَ تَسْبِيحَاتٍ