Rabi bin Sabra al-Juhanni reported on the authority of his father Radi Allahu Anhu ,

✦ Rabi bin Sabra al-Juhanni reported on the authority of his father Radi Allahu Anhu , Allah's Messenger Sallallahu Alaihi wasallam prohibited the contracting of temporary marriage (Mutah) and said: Behold, it is forbidden from this very day of yours to the Day of Resurrection, and he who has given something (as a dower) should not take it back.

Sahih Muslim, Book 8, 3262

✦ Ali (Allah be pleased with him) heard that Ibn Abbas (Allah be pleased with them) gave some relaxation in connection with the contracting of temporary marriage, whereupon he said Don't be hasty (in your religious verdict), Ibn Abbas, for Allah's Messenger Sallallahu Alaihi wasallam on the Day of Khaibar prohibited that forever - along with the eating of flesh of domestic asses.

Sahih Muslim, Book 8, 3266

✦ Narrated Ali Radi Allahu Anhu I said to Ibn Abbas Radi Allahu Anhu During the battle of Khaibar the Prophet Sallallahu Alaihi wasallam forbade (Nikah) Al-Mut'a and the eating of donkey's meat.

Sahih Bukhari, Book 62, 50