And Zuhayr ibn Harb narrated to us, saying: Al-Walid ibn Muslim narrated to us, saying: Al-Awza'i narrated to us, saying: I heard Yahya say: I asked Abu Salama, "Which part of the Qur'an was revealed first?" He said, "O you who is wrapped in garments (Ya ayyuha al-muddaththir)." I said, "Or 'Recite' (Iqra')?" He said, "I asked Jabir ibn 'Abd Allah, 'Which part of the Qur'an was revealed first?' He said, 'O you who is wrapped in garments (Ya ayyuha al-muddaththir).' I said, 'Or "Recite" (Iqra')?' Jabir said, 'I will tell you what the Messenger of Allah, peace and blessings be upon him, told us. He said: "I stayed in retreat at Hira' for a month, and when I completed my retreat, I came down and went into the middle of the valley. Then I was called, so I looked ahead of me, behind me, to my right, and to my left, but I did not see anyone. Then I was called again, and I looked but did not see anyone. Then I was called a third time, so I raised my head, and there he was upon the Throne in the air—meaning Gabriel, peace be upon him. A severe trembling seized me, so I came to Khadijah and said, 'Wrap me up.' So they wrapped me up and poured water on me. Then Allah, Mighty and Majestic, revealed: "O you who is wrapped in garments, arise and warn, and your Lord magnify, and your garments purify."'"