Hazrat Anas (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) would often supplicate: O Turner of hearts, keep my heart firm upon Your religion. The companions (may Allah be pleased with them) asked: O Messenger of Allah (peace be upon him)! We have believed in you and in the religion you have brought. Do you still fear for us? He (peace be upon him) replied: Yes! Indeed, all hearts are between two fingers from among the fingers of Allah; He turns them as He wills.