1. According to Quran and tradition, temporary marriage is one of the essentials of Islam. Muslims used to adhere to it both practically as well as theoretically.
2. Umar bin Khattab prohibited it after he assumed power and ruled for sometimes.
3. Being aware of these two issues, Sunni scholars differed on how to justify it. Some said that prohibition was made by the Holy Prophet (S) and no one other than Umar was aware of it. This justification as mentioned before, is wrong. Others were of the view that it was Umar who prohibited it. According to them we must follow him, for the Holy Prophet (S) has ordered us to follow his conduct and the conduct of his guided caliphs. We have elsewhere dealt with this tradition independently and proved that it is wrong.1
Some have said that the Holy Prophet (S) himself prohibited it. Those who follow this theory, differ on the time and place of this happening. They have resorted to traditions that are squarely fabricated.
4. It is clear thus that temporary marriage is lawful and the traditions on its prohibition are fabricated.
Given all these [specially the tradition that stresses on following caliphs]2 we are led to believe that the prohibition of temporary marriage by Umar was nothing but an innovation – a thing that was forbidden by the Holy Prophet (S).
ایاکم و محدثات الامور...
Distance yourself innovations.
In this short treatise, so far we have briefly evaluated different opinions on the two mut'as [and argued that both are lawful], but this issue has other dimensions which need to be touched by jurists and theologians.
We ask Allah to help us find the true path and do our deeds purely for Allah. We also ask Him to help us associate with the Holy Prophet (S), his progeny and his real followers. He is no doubt beneficent and merciful.