Musannaf Ibn Abi Shayba 16:750

Abu Bakr narrated to us, he said: Abu Usamah narrated to us, from Musawir, he said: Ja'far ibn 'Amr ibn Hurayth narrated to me, from his father, he said: It is as if I am looking at the Messenger of Allah, may Allah bless him and grant him peace, and upon him was a black turban, and he had let its two ends hang down between his shoulders.