Question 284: What is the ruling on people who have a patient smell the leather of wolves under the pretense that this reveals the existence/non-existence of Jinn (creatures created from fire). They claim that Jinn fear wolves, flee from them and are troubled by their presence.
Answer: It is not permissible for a person who performs Ruqyah (reciting Qur’aan and saying supplications over the sick seeking healing) to use the leather of wolves to have patients smell it to be able to diagnose their illness. This is a form of deception and corrupt belief; therefore, it should be totally prohibited. Moreover, saying that Jinn fear wolves is a baseless superstition... read more here.