Musnad Ahmad 932:17

Abdullah narrated to us, Muhammad ibn Abi Bakr al-Muqaddami narrated to us, Abu Hudhayfah Musa narrated to us, from Zuhayr ibn Muhammad, from Abdullah ibn Muhammad ibn Aqil, from al-Tufayl ibn Ubayy, from his father, from the Prophet, peace and blessings of Allah be upon him, who said: "Were it not for the migration, I would have been a man from the Ansar. And if the Ansar traveled through a valley or a mountain pass, I would be with the Ansar."