Musnad Ahmad 33:1040

Abu Salamah al-Khuza'i narrated to us, Sharik narrated to us, from 'Ammar al-Duhni, from Abu al-Zubayr, from Jabir: "That the Messenger of Allah (peace and blessings of Allah be upon him) entered Makkah on the day of the Conquest, and upon him was a black turban."