HAHA there is a book called "Personal hygene in Islam"
Maybe world's shortest book?
One of the intructions in said book would be "never take a bath".
(I'm not joking here, here is an injunction in strict Islam against the use of Baths)
What?
Sorry, I missed out the "t" in "there".
I can't find the quotes from islamic scripture atm, but, I know of an example, a member of al'queada who was captured by the FBI was given the choice, either he provided names of other members of al'queada, or he would be forced to have a bath, he provided names that lead to further arrests, rather than have a bath.