Hallal (Permitted) Islamic Prostitution via a "temporary" marriage then a divorce. (video)

For some of the practical consequences of Muhammad's teachings about Mut'ah, see the following articles:

"Syrian Mothers Selling Daughters as Prostitutes to Wealthy Saudis in Accordance with Sharia"
"Muta (Islamic Prostitution) Still Common in Poor Areas of Egypt"
"Hezbollah Using Prostitution (Muta) for Recruitment"
"Temporary Marriage in Iran"

For a more thorough discussion of Mut'ah in the Islamic sources, see the following article by Sam Shamoun:

"Revisiting Muhammad’s Permitting a Form of Prostitution known As Muta"