Question 514: The saying: “Allaah is in the hearts of believers.” Does it indicate that the one who says it is a believer in Hulool (a Sufi term meaning indwelling)? What is the deviating sect that believes in such a saying?
Answer: It is more proper not to say “Allaah is in the hearts of believers” as it may allude to a belief in Hulool. Alternatively, one can say, “Believers love Allaah.” Allah (Exalted be He) says: But those who believe, love Allaah more (than anything else). He (Glorified be He) also says: Allaah will bring a people whom He will love and they will love Him However, if, by saying such a statement, one means that Allaah’s love is dominating the hearts of believers and that they fear Him, it will be alright as it is a sound meaning... read more here.