On the day of Khaiber, Allah's Messenger (ﷺ) forbade the eating of garlic and the meat of donkeys.
Sahih al-Bukhari Book 64, Hadith 255
← Previous Hadith While we were besieging Khaibar, a person threw a leather container containing some fat and I ran to take it. Suddenly I looked behind, and behold! The Prophet (ﷺ) was there. So I felt shy (to take it then).

Sahih al-Bukhari Book 64, Hadith 254 Next Hadith → On the day of Khaibar, Allah's Messenger (ﷺ) forbade the Mut'a (i.e. temporary marriage) and the eating of donkey-meat.

Sahih al-Bukhari Book 64, Hadith 256