Jami` at-Tirmidhi 370
جامع الترمذي#370SahihAbu Hurairah narrated that the Prophet (ﷺ) said:"Yawning in prayer (salah) is from the Shaitan, so when one of you yawns then let him suppress (it) as much as possible
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 2:222