Question: What is the ruling on carrying pocket-sized copies of the Mus-haf (copy of the Qur’aan)for protection against envy or the evil eye on the grounds that they provide protection or prevent harm? What is the ruling if they are put in the car to prevent accidents? The second question is: What is the ruling on wearing an amulet which contains Aayaat (Qur’aanic verses) of the Qur’aan for protection against envy or the evil eye or for seeking success or recovering from illness or magic spells or other purposes? The third question is: What is the ruling on wearing gold necklaces which contain Ruqyah (a piece of paper with some Qur’aanic verses and supplications written on it) for protection from harm?
Answer: Allaah (Glorified be He) revealed the Qur’aan so that people could practice its recitation as an act of `Ibaadah (worship), contemplate its meaning, know its rulings and thereby act upon them… read more here.