Musa bin Talhah said: On Fridays, Uthman (may Allah be pleased with him) would lean on a staff. He was the most handsome of people, and he would be wearing two yellow garments, a waist-wrap and an upper sheet, until he came to the pulpit and sat on it.
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 92