Narrated Abu Bakr: I was in the company of the Prophet (ﷺ) in the cave, and on seeing the traces of the pagans, I said, "O Allah's Messenger (ﷺ) If one of them (pagans) should lift up his foot, he will see us." He said, "What do you think of two, the third of whom is Allah?
1 further citation is on a recording that is not available on YouTube at the moment, so it is not shown here. It is still counted above and included in the download.