Model Behavior of the Prophet (Kitab Al-Sunnah)
Dawud :: Book 40 : Hadith 4645
Narrated AbuBakrah:
The Apostle of Allah (peace_be_upon_him) said to al-Hasan ibn Ali. This son of mine is a Sayyid (chief), and I hope Allah may reconcile two parties of my community by means of him. Hammad's version has: And perhaps Allah may reconcile two large parties of Muslims by means of him.