Musnad Ahmad 770:64

Waki’ narrated to us, from Sharik, from ‘Asim, from Abu Wa’il, from Jarir, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The Muhajirun (emigrants) and the Ansar (helpers) are allies of one another, and the Tulaqa (those freed at the conquest of Mecca) from Quraysh, and the ‘Utaqa (freed slaves) from Thaqif, are allies of one another until the Day of Resurrection." Sharik said: And Al-A’mash narrated to us, from Tamim ibn Salamah, from ‘Abd al-Rahman ibn Hilal, from Jarir, from the Prophet (peace and blessings of Allah be upon him), the like of it.