Narrated Abu Bakr (may Allah be pleased with him): I was with the Prophet (peace and blessings of Allah be upon him) in the cave (of Thawr), and when I raised my head, I saw the feet of the (polytheist) people. So I said, "O Messenger of Allah! If any one of them looks down, he will see us." The Prophet (peace and blessings of Allah be upon him) said: "O Abu Bakr! Be quiet. We are two persons, and the third (companion) with us is Allah."