(39) باب مُتَابَعَةِ الإِمَامِ وَالْعَمَلِ بَعْدَهُ
'Amr b. Huraith reported:
I said the dawn prayer behind the Apostle of (ﷺ) and heard him reciting: 'Nay. I call to witness the stars, running their courses and setting" (al-Qur'an, lxxxi. 15-16) and Done of us bent his back till he completed prostration.
Reference: Sahih Muslim 475
In-book reference: Book 4, Hadith 228
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 962