Allah's Messenger (ﷺ)'s said, "If a man and a woman
agree (to marry temporarily), their marriage should last for three nights, and if they like to continue,
they can do so; and if they want to separate, they can do so." I do not know whether that was only for
us or for all the people in general. Abu `Abdullah (Al-Bukhari) said: `Ali made it clear that the
Prophet said, "The Mut'a marriage has been cancelled (made unlawful).
Sahih al-Bukhari Book 67, Hadith 55