Musnad Ahmad 1153:561

Abu al-Yaman narrated to us, he said: Shu'ayb informed us, from al-Zuhri, he said: Abu Salamah ibn 'Abd al-Rahman narrated to me, that 'Aishah, the wife of the Prophet, may Allah bless him and grant him peace, said: The Messenger of Allah, may Allah bless him and grant him peace, said: "O 'Aish, this is Jibril, peace be upon him, greeting you with peace." She said: "And upon him be peace and the mercy of Allah." She said: "And he sees what we do not see."