(3) باب إزالة النجاسة وبيانها
Narrated Anas bin Malik (rad):
On the day of Khaibair, Allah's Messenger (ﷺ) commanded Abu Talha to announce: "Allah and His Messenger have prohibited for you (eating of) the flesh of the donkeys, for it is unclean". [Agreed upon].
Reference: Bulugh al-Maram 25
In-book reference: Book 1, Hadith 29
English translation: Book 1, Hadith 28