Be Masters With What You Are Teaching From the Book and Studying

3: 79. It is not (possible) that a man to whom is given the Book and Wisdom and the prophetic office should say to people: "Be ye my worshippers rather than Allah's; on the contrary (he would say): [Rabbaniyina]: "Be of those who are possessed of Command, Authority and Mastery by what you are teaching from the Book and by what you are studying."