It is narrated from Hazrat Ka'b that when the angels saw the sins of human beings, they said, "O Allah! They commit sins." Allah Almighty said, "If you were like them, you would do what they are doing. So select two angels from among yourselves." They selected Harut and Marut. Allah Almighty said to these two angels, "You are messengers between Me and the people; there is no one between Me and you. Do not associate anyone with Me, do not steal, do not commit adultery." Hazrat Abdullah said: Hazrat Ka'b said that they did not fulfill this covenant until they fell into that which was forbidden to them.