It is also narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that on the night of the jinn, the Messenger of Allah (peace and blessings be upon him) came to him while he had with him a decayed bone, camel dung, and charcoal. The Prophet (peace and blessings be upon him) said: "When you go to relieve yourself, do not use any of these things for istinja (purification)."