The Book of Prayers
4/46. Chapter:
The Description Of The Prayer, With What It Begins And Ends. The Description Of Bowing And Moderation Therein, And Of Prostration And Moderation Therein. Tashah-hud After Each Two Rak'ah Of Four Rak'ah Prayers. Description Ol Sitting Between The Two Prostrations, And In The First Tashah-hud
Sahih Muslim
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَابْنُ أَبِي عُمَرَ، جَمِيعًا عَنْ سُفْيَانَ، - قَالَ يَحْيَى أَخْبَرَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، - عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ الأَصَمِّ، عَنْ عَمِّهِ، يَزِيدَ بْنِ الأَصَمِّ عَنْ مَيْمُونَةَ، قَالَتْ كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا سَجَدَ لَوْ شَاءَتْ بَهْمَةٌ أَنْ تَمُرَّ بَيْنَ يَدَيْهِ لَمَرَّتْ .
Maimuna reported: When the Messenger of Allah (ﷺ) prostrated himself, if a lamb wanted to pass between his arms, it could pass.
Reference : Sahih Muslim 496In-book reference : Book 4, Hadith 269USC-MSA web (English) reference : Book 4, Hadith 1002