Musnad Abu Ya'la al-Mawsili 3:316

Zuhayr ibn Harb narrated to us, Sufyan ibn 'Uyaynah narrated to us, from al-Zuhri, from al-Hasan and 'Abdullah, the two sons of Muhammad ibn 'Ali, from their father, from 'Ali, from the Prophet, may Allah bless him and grant him peace: He forbade the temporary marriage (nikah al-mut'ah) on the day of Khaybar, and [he forbade] the meat of domesticated donkeys.