Musnad Ahmad 529:17

Al-Hakam ibn Nafi' narrated to us, Isma'il ibn 'Ayyash narrated to us, from Damdam ibn Zur'ah, from Shurayh ibn 'Ubayd, from Kathir ibn Murrah, from 'Utbah ibn 'Abd, that the Prophet, peace and blessings of Allah be upon him, said: "The Caliphate is among Quraysh, and authority is among the Ansar, and the call is in Abyssinia, and the migration is among the Muslims, and the Muhajirun after them."