Musnad Ahmad 695:5

Wahb ibn Jarir narrated to us, my father narrated to us, he said: I heard al-Nu’man narrating from al-Zuhri, from Ali ibn al-Husayn, from al-Miswar ibn Makhramah, that Ali proposed to the daughter of Abu Jahl, and he was promised the marriage. So Fatimah came to the Prophet, peace and blessings of Allah be upon him, and said: "Your people are saying that you do not get angry for your daughters, and that Ali has proposed to the daughter of Abu Jahl." The Prophet, peace and blessings of Allah be upon him, stood up, praised Allah, extolled Him, and said: "Fatimah is only a piece of me, and I dislike that you should tempt her." He mentioned Abu al-Aas ibn al-Rabi’, and he praised him much, and said: "The daughter of the Prophet of Allah and the daughter of the enemy of Allah shall not be joined together." So Ali abandoned that.