Musannaf Ibn Abi Shaybah 34396 — Reports on Ibn Abbas

Amir said: Sayyiduna al-Abbas (may Allah be pleased with him) came to the Prophet (peace and blessings be upon him) and did not see anyone with him (peace and blessings be upon him). Then his son said to him: "I saw a man with him (peace and blessings be upon him)." At this Sayyiduna al-Abbas (may Allah be pleased with him) said: "O Messenger of Allah (peace and blessings be upon him), your cousin claims that he saw a man with you (peace and blessings be upon him)." Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) then said: "Yes, by the One who sent down the Book upon you (peace and blessings be upon him)." He (peace and blessings be upon him) said: "That was Jibril."