(52) باب مَتَى يَسْجُدُ مَنْ خَلْفَ الإِمَامِ
Narrated Al-Bara:
(and he was not a liar) When Allah's Messenger (ﷺ) said, "Sami`a l-lahu liman hamidah" none of us bent his back (for prostration) till the Prophet (ﷺ) prostrated and then we would prostrate after him. (ES)
Reference (ES): Sahih al-Bukhari 690 (ES)
In-book reference (ES): Book 10, Hadith 84 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 11, Hadith 658 (ES)