The Book of The At-Tatbiq (Clasping One's Hands Together)
12/24. Chapter:
The duration of the standing between rising up from bowing to prostrating
Sunan an-Nasai
أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا ابْنُ عُلَيَّةَ، قَالَ أَنْبَأَنَا شُعْبَةُ، عَنِ الْحَكَمِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنِ الْبَرَاءِ بْنِ عَازِبٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ رُكُوعُهُ وَإِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ وَسُجُودُهُ وَمَا بَيْنَ السَّجْدَتَيْنِ قَرِيبًا مِنَ السَّوَاءِ .
It was narrated from Al-Bara' bin 'Azib that: The bowing of the Messenger of Allah (ﷺ), and when he raised his head from bowing, and his prostration, and the time between the two prostration, were almost equal in length.
Reference : Sunan an-Nasa'i 1065In-book reference : Book 12, Hadith 37English translation : Vol. 2, Book 12, Hadith 1066