Ja'far bin Amr bin Hurayth narrates from his father (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) addressed the people, and he (peace and blessings be upon him) was wearing a black turban.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة العيدين / 6139