Musannaf Ibn Abi Shayba 27:543

Malik ibn Isma'il narrated to us, from Asbat ibn Nasr, from al-Suddi, from Sabih, the freed slave of Umm Salama, from Zayd ibn Arqam, that the Prophet, may Allah bless him and grant him peace, said to Fatimah, Hasan, and Husayn: "I am at war with those who war against you, and at peace with those who are at peace with you."