Sahih al-Bukhari 3818

ʿUmar ibn Muhammad ibn Hasan narrated to me: My father narrated to us: Hafs narrated to us, from Hisham, from his father, from ʿAʾisha, may Allah be pleased with her, who said: “I was never jealous of any of the Prophet’s wives as I was of Khadija, though I had never seen her. The Prophet spoke of her often. Sometimes he would slaughter a sheep, cut it into pieces, and send them to Khadija’s close female friends. Sometimes I would say to him, ‘It is as though there had never been any woman in the world except Khadija.’ He would say, ‘She was such-and-such, and such-and-such; and I had a child with her.’”