Ahmed bin Suliaman أحمد بن سليمان · The Book of al-Bay'ah

"Allah never sends a prophet or appoints a Khalifah but he has two groups of advisers: A group that tells him to do good and a group that tells him to do evil and urges him to do it. And the one who is truly protected is the one who is protected by Allah, the Mighty and Sublime."

the Messenger of Allah sent an army and appointed a man in charge of them. He lit a fire and said: "Enter it." Some people wanted to enter it, and other said: "We are trying to keep away from it." They mentioned that to the Messenger of Allah, and he said to those who had wanted to enter if: "If you had entered it you would have stayed there until the Day of Resurrection." And he spoke good words to…