Jami` at-Tirmidhi 383
جامع الترمذي#383SahihAbu Hurairah narrated:"The Prophet (S) prohibited than a man to pray with his hands on his hip
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
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 2:235