Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrated: I was with my father in the presence of the Prophet (peace and blessings be upon him), and with the Prophet (peace and blessings be upon him) there was a man who was speaking to him in private, and he (peace and blessings be upon him) seemed to be turning away from my father. So when we left him, my father said to me: "Did you not see how your cousin seemed to be turning away from me?" I said to him: "Father! There was a man with him speaking to him in private." He said: "Was there someone with him?" I said: "Yes." So we went back, and he said: "O Messenger of Allah! I said such-and-such to Abdullah, and he replied to me such-and-such; was there someone with you?" He (peace and blessings be upon him) said: "Yes; and did you see him, O Abdullah?" I said: "Yes." He (peace and blessings be upon him) said: "That was Jibril (peace be upon him); it was he who kept me occupied from you."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12781