Jami` at-Tirmidhi 1017
جامع الترمذي#1017Da'ifAnas bin Malik narrated:"The Messenger of Allah would visit the sick, attend the funerals, ride a donkey, accept the invitation of a slave, and on the Day of Banu Quraizah he was on a donkey muzzled with a cord of fibers and a pack-saddle made of fibers
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif
Al-AlbaniDaif
Bashar Awad MaaroufDaif
Zubair Ali ZaiSahih
In-book reference: 10:53