Narrated `Ali bin Abi Talib: On the day of Khaibar, Allah's Apostle forbade the Mut'a (i.e. temporary marriage) and the eating of donkey-meat.

Narrated `Ali: I said to Ibn `Abbas, "During the battle of Khaibar the Prophet forbade (Nikah) Al-Mut'a and the eating of donkey's meat."

Narrated `Ali: Allah's Apostle prohibited Al-Mut'a marriage and the eating of donkey's meat in the year of the Khaibar battle.

Narrated Muhammad bin `Ali: `Ali was told that Ibn `Abbas did not see any harm in the Mut'a marriage. `Ali said, "Allah's Apostle forbade the Mut'a marriage on the Day of the battle of Khaibar and he forbade the eating of donkey's meat." Some people said, "If one, by a tricky way, marries temporarily, his marriage is illegal." Others said, "The marriage is valid but its condition is illegal."