Purification (Kitab Al-Taharah)

Dawud :: Book 1 : Hadith 39

Narrated Abdullah ibn Mas'ud:

A deputation of the jinn came to the Prophet (peace_be_upon_him) and said: O Muhammad, forbid your community to cleans themselves with a bone or dung or charcoal, for in them Allah has provided sustenance for us. So the Prophet (peace_be_upon_him) forbade them to do so.