Hadith No: 2
Al-Ajri - Al-Shari'ah - Book of the Virtues of the Commander of the Faithful (peace be upon him)
Chapter on the Mention of the Prophet's (peace be upon him and his holy progeny) Supplication for Those Who Advocate Ali ibn Abi Talib (peace be upon him and his holy progenitor) and Support Him, and His Supplication Against Those Who Oppose Him
Volume: (4) - Page Number: (2054)
1529 - Abu Bakr Abdullah ibn Muhammad ibn Abd al-Hamid al-Wasiti narrated to us, saying: Muhammad ibn Rizq Allah al-Kalwadhani narrated to us, saying: Ahmad ibn Hanbal narrated to us, saying: Talid ibn Sulayman narrated to us, saying: Abu al-Juhaf narrated to us, from Abu Hazim
from Abu Huraira, who said: The Messenger of Allah (peace be upon him and his holy progeny) said to Ali, Fatimah, al-Hasan, and al-Husayn (peace be upon them): "I am at war with whoever wars against you and at peace with whoever is at peace with you."