{ And those who guard their crotches, except from their wives and what their right hands have possessed, for indeed they are not blamed; but whoever seeks beyond this, those are the transgressors } Al-mu’minun 5-7

From Ibn ‘Abbas who said: Temporary pleasure marriage [mut’a] was in the early part of Islam; a man would come to a town unfamiliar to him and marry a woman for the extent that he could see himself staying there. And so this safeguarded his property and made his matter good, until this verse came down { Except from their wives or who their right hands have possessed } [Al-mu’minin 6 and Al-ma’arij 30]. And Ibn ‘Abbas said: All vaginas except these two are forbidden.