Musannaf Ibn Abi Shayba 27:475

Abdullah ibn Numayr narrated to us, from Fitr, from Abu Ishaq, from Abu Abdullah al-Jadali, who said: Umm Salama said to me, "O Abu Abdullah, is the Messenger of Allah, may Allah bless him and grant him peace, insulted among you, and you do not change it?" I said, "And who insults the Messenger of Allah, may Allah bless him and grant him peace?" She said, "Ali is insulted, and whoever loves him; and the Messenger of Allah, may Allah bless him and grant him peace, used to love him."