Sunan Abi Dawud 621

سنن أبي داود#621Sahih

Al-Bara b.‘Azib said ; we used to pray along with the prophet (ﷺ); none of us bowed his back until he saw that the prophet (ﷺ) bowed (his back)

Scholarly Authentication

We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:

Al-AlbaniSahih

Muhammad Muhyi Al-Din Abdul HamidSahih

Shuaib Al ArnautSahih

Zubair Ali ZaiSahih Muslim (474)

In-book reference: 2:231