حَدَّثَنَا عَمْرُو بْنُ رَافِعٍ الْبَجَلِيُّ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، عَنْ مُوسَى بْنِ أَيُّوبَ الْغَافِقِيِّ، قَالَ سَمِعْتُ عَمِّي، إِيَاسَ بْنَ عَامِرٍ يَقُولُ سَمِعْتُ عُقْبَةَ بْنَ عَامِرٍ الْجُهَنِيَّ، يَقُولُ لَمَّا نَزَلَتْ ‏{فَسَبِّحْ بِاسْمِ رَبِّكَ الْعَظِيمِ}‏ قَالَ لَنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏"‏ اجْعَلُوهَا فِي رُكُوعِكُمْ ‏"‏ ‏.‏ فَلَمَّا نَزَلَتْ ‏{سَبِّحِ اسْمَ رَبِّكَ الأَعْلَى}‏ قَالَ لَنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏"‏ اجْعَلُوهَا فِي سُجُودِكُمْ ‏"‏ ‏.‏

It wasnarrated that Ibn Mas’ud said

“The Messenger of Allah (ﷺ)said: ‘When anyone of you bows, let him say in his bowing: “SubhanaRabbiyal-‘Azim (Glory is to my Lord, the Most Great)” threetimes; ifhe does that his bowing will be complete. And when anyoneof youprostrates, let him say in his prostration, ‘SubhanaRabbiyal-A’la(Glory if to my Lord, the Most High)” three times;if he does that,his prostration will be complete, and that is theminimum.’”