[SkyRat]

I think you are mistaken linking assassins to MJ.

As far as the story goes, the guys who drank the drug, whatever it was, dozed off and were transported to some garden with the obligatory 72 virgins. Reading through the reports available it looks more like opium or something with similar effect. This would also fit into the times.

I haven't heard about MJ and Islam in some special way. But since the Islam prohibits alcohol consumption it would be likely that they use some other drug.

[Monty22]

Well, this is the quickest I've found, but I've seen lots of discussion on the subject.

http://www2.seasite.niu.edu/tagalogdiscuss/_disc1/00000f24.htm
the English word assasin is from the Arabic Hashishin.These people would use Hashish before they killed so that they would no remorse afterwards.