Jami` at-Tirmidhi 1121
جامع الترمذي#1121SahihAli bin Abi Talib narrated:"The Prophet prohibited the Mut'ah with women, and the meat of domestic donkeys during (the campaign of) Khaibar
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 - Agreed Upon
In-book reference: 11:43