Anas bin Malik reported,

We came upon Khaybar early in the morning, and its people came out carrying their spades. When they caught sight of the Prophet ﷺ, they cried out, "Muhammad, by Allah! Muhammad and his army!"The Prophet ﷺ said, "Allah is the Greatest! Khaybar is destroyed. When we descend upon a people's territory, "evil is the morning of those who were warned" [Saffat 37:177]."We then took some of the meat of the donkeys, but the Prophet's ﷺ caller announced, "Allah and His Messenger forbid you from the meat of donkeys, for it is impure."

Bukhari 4198

Sahih

أخبرنا صدقة بن الفضل أخبرنا ابن عيينة حدثنا أيوب عن محمد بن سيرين

عن أنس بن مالك رضي الله عنه قال

صبحنا خيبر بكرة فخرج أهلها بالمساحي فلما بصروا بالنبي ﷺ قالوا محمد والله محمد والخميس فقال النبي ﷺ الله أكبر خربت خيبر إنا إذا نزلنا بساحة قوم {فساء صباح المنذرين} فأصبنا من لحوم الحمر فنادى منادي النبي ﷺ إن الله ورسوله ينهيانكم عن لحوم الحمر فإنها رجس

البخاري 4198صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Expeditions
Chapter
Expedition of Khaybar
Numbering
Darussalam 4198
Bukhari 4198