I heard al-Bara' and 'Abdullah b. Abu Aufa say: We found domestic asses and we cooked them. Then the announcer of Allah's Messenger (ﷺ) made an announcement that the earthen pots should be turned over.
Sahih Muslim Book 34, Hadith 41
← Previous Hadith I heard Abdullah b. Abu Aufa say: We were smitten with hunger during the nights of Khaibar. On the Day of Khaibar, we fell upon domestic asses and we slaughtered them, and when our earthen pots boiled with them, the announcer of Allah's Messenger (ﷺ) made an annoancement that the earthen pots should be turned over, and nothing should be eaten of the flesh of the domestic asses. Some of the people said that Allah's Messenger (ﷺ) had forbidden (the use of this flesh) for one-fifth (due to the State) has not been paid, while others said: He prohibited it for ever.

Sahih Muslim Book 34, Hadith 40 Next Hadith → We found on the Day of Khaibar domestic asses, and the announcer of the Messenger of Allah (ﷺ) made an announcement that the earthen pots should be turned over.

Sahih Muslim Book 34, Hadith 42