(38) باب غَزْوَةُ خَيْبَرَ
Narrated Al-Bara Bin Azib:
During the Ghazwa of Khaibar, the Prophet (ﷺ) ordered us to throw away the meat of the donkeys whether it was still raw or cooked. He did not allow us to eat it later on.
Reference: Sahih al-Bukhari 4226
In-book reference: Book 64, Hadith 264
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 535