Sayyiduna Jabir (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) entered (Makkah) on the day of the Conquest, and he (peace and blessings be upon him) was wearing a black turban.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5978