عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ خَطَبَ النَّاسَ وَعَلَيْهِ عِصَابَةٌ دَسِمَةٌ
It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) delivered a sermon to the people, at that time there was a black turban on his head.