The solution for prostitution … temporary marriage … ‘Sighe’ …
[quote]
Many of the clients find a way to buy sex and still comply with Muslim law: they marry the women in what is called ‘Sighe’, a temporary marriage sanctioned in Shia Islam. Sighe can last from two hours up to 99 years. Both Minna and Fariba enter into Sighe with clients, and Fariba is in a Sighe marriage with a neighbour, Habib, that lasts six months. Giving his perspective on temporary marriage, Habib says that Sighe is a way to help poor women, it is an act of mercy in the name of Allah.[/quote]
There is a film made about this fenomena, read about it here