AbuTalib went to ash-Sham (Syria) accompanied by the Prophet (may Allah bless him) along with some shaykhs of Quraysh. When they came near where the monk was they alighted and loosened their baggage, and the monk came out to them although when they had passed that way previously he had not done so. While they were loosening their baggage the monk began to go about among them till he came and, taking Allah's Messenger (peace be upon him) by the hand, said, "This is the chief of the universe; this is the messenger of the the Lord of the universe whom Allah is commissioning as a mercy to the universe." Some shaykhs of Quraysh asked him how he knew, and he replied, "When you came over the hill not a tree or a stone failed to bow in prostration, and they prostrate themselves only before a prophet. I recognize him by the seal of prophecy, like an apple, below the end of his shoulder-blade." He then went and prepared food for them, and when he brought it to them the Prophet (peace be upon him) was looking after the camels, so he told them to send for him. He came with a cloud above him shading him and when he approached the people he found they had gone before him into the shade of a tree. Then when he sat down the shade of the tree inclined over him, and the monk said, "Look how the shade of the tree has inclined over him. I adjure you by Allah to tell me which of you is his guardian." On being told that it was AbuTalib he kept adjuring him to send him back until he did so. AbuBakr sent Bilal along with him and the monk gave him provisions of a bread and olive-oil.
Tirmidhi transmitted it.