[Ali Imran]

Was the practice of mutah abrogated by muh?
Why did he allow it to happen in the first place?

I have absolutely no idea. I don't need to learn that because it has no bearing on my life, my religion, and my salvation. 

If I ask you about the Trinity, that has a lot to do with your religion and your salvation. If the Trinity is false, you are guilty of the very first commandment, the foremost of them all, the very one you don't want to get wrong, trust me.