Musannaf Ibn Abi Shayba 16:104

Abu Bakr narrated to us, he said: Husayn bin Ali narrated to us, from Za'idah, from Muhammad bin 'Amr, from Abu Salamah, from Abu Hurayrah, that the Messenger of Allah (may Allah bless him and grant him peace) prohibited the domestic donkey on the day of Khaybar.