Jami` at-Tirmidhi 337
جامع الترمذي#337SahihIbn Abbas narrated:"I was a companion rider on a female donkey with Al-Fadl. We came while the Prophet and his Companions were performing Salat at Mina." He said: "We dismounted from it and joined the row. The donkey then passed in front of them, and this did not invalidate their Salat
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: 2:189