It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both): I was with my father in the company of the Prophet (peace and blessings be upon him), and with the Prophet (peace and blessings be upon him) was a man who was speaking to him (peace and blessings be upon him) privately, so he (peace and blessings be upon him) was turning away from my father. We left him, and my father said to me: Did you see my nephew, as though he was turning away from me? I said to him: Father, there was a man with him with whom he was speaking privately. He said: Was there someone with him? I said: Yes. We came back to him (peace and blessings be upon him), and he said: O Messenger of Allah, I said such and such to Abdullah, and he answered me such and such; was there someone with you (peace and blessings be upon him)? He (peace and blessings be upon him) said: "Yes. Did you see him, O Abdullah?" I said: Yes. He (peace and blessings be upon him) said: "That was Jibril, with whom I was occupied."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13344