Sunan an-Nasa'i 822
سنن النسائي#822SahihIt was narrated that Al Bara said:"When we prayed behind the Messenger of Allah (ﷺ) I liked to be to his right
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 10:46