Sahih al-Bukhari 2991

'Abdullah ibn Muhammad narrated to us; Sufyan narrated to us from Ayyub, from Muhammad, from Anas (may Allah be pleased with him), who said: The Prophet (ﷺ) arrived at Khaybar in the morning, while its people had come out with their hoes on their shoulders. When they saw him, they said, ‘This is Muhammad and the army! Muhammad and the army!’ They fled to the fortress. The Prophet (ﷺ) raised his hands and said, ‘Allah is greatest! Khaybar is ruined! When we alight in a people's territory, wretched is the morning of those who were warned.’ We seized some donkeys and cooked them. Then a caller of the Prophet (ﷺ) announced: ‘Allah and His Messenger forbid you the meat of donkeys.’ So the pots and what was in them were overturned. 'Ali also related it from Sufyan, adding that the Prophet (ﷺ) raised his hands.