Sa'id bin Masrooq Ath-Thawri سعيد بن مسروق الثوري · Chapters on Dress

“The Messenger of Allah (ﷺ) came out to us one day, wearing a Roman cloak of wool with narrow sleeves. He led us in prayer wearing that, and nothing else.”

“The best of that in which you visit Allah in your graves and your mosque is white (garments).”*