What did the Prophet Muhammad (saw) say when Abu Bakr (ra) expressed worry that somebody might see them in the Cave?
 Narrated Abu Bakr:                     I was with the Prophet in the Cave. When I raised my head, I saw the feet of the people. I said, "O Allah's Apostle! If some of them should look down, they will see us." The Prophet said, "O Abu Bakr, be quiet! (For we are) two and Allah is the Third of us."