Sunan Abi Dawud 3788
سنن أبي داود#3788SahihJabir b. ‘Abd Allah said:The Messenger of Allah(ﷺ) forbade the flesh of domestic asses on the day of Khaibar, but permitted horse flesh
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautHasan Sahih
Zubair Ali ZaiSahih Bukhari (4219) Sahih Muslim (1941)
In-book reference: 28:53