Al-Lu'lu Wal-Marjan 1540 — The Book of the Virtues of the Companions of the Prophet ﷺ

Abu Bakr Narrated from:

I said to the Prophet صلى الله عليه وسلم while I was in the cave (of the mountain called Ath-Thûr at Makka), "If any of them should look under his feet, he would see us." He said, "O Abû Bakr! What do you think of two (persons) the third of whom is Allâh?" ( Sahîh Al-Bukhârî, Hadîth No. 5, Vol. 5 )