Question 307: Some people among us, when they find a dead wolf they cut the skin of its face and its ears and hang them as a Hirz (protective amulet) in their homes believing that they dispel devils (evil Satan’s). What is the ruling on such an act?
Answer: Hanging some parts of a wolf and its skin at home or at the doors as Hirz and believing that they dispel devils and prevent Jinn from entering homes is Bid`ah (innovation in religion) and has no origin in the Book of Allaah or the Sunnah (whatever is reported from the Prophet) of His Messenger (peace be upon him). Believing in these things blemishes the Tawheed (belief in the Oneness of Allaah) of the Muslim because it is a kind of association with something other than Allaah and an act of seeking refuge with something other than Him. Keeping such things at home and hanging them on doors is, like wearing amulets, an act of Shirk (associating others with Allaah in His Divinity or worship); according to what was narrated by`Uqbah ibn `Aamir from the Prophet (peace be upon him) that he said... read more here.