Amr b. Huraith reported on the authority of his father that Messenger of Allah ﷺ addressed the people (on the day of the Victory of Mecca) with a black turban on his head. (Using translation from Muslim 1359a)
أَنَّ النَّبِيَّ ﷺ خَطَبَ النَّاسَ وَعَلَيْهِ عِمَامَةٌ سَوْدَاءُ