《明史·志·卷四十三》
文武官员日常穿的服饰。洪武三年制定，凡是一般的朝见、处理政务，以乌纱帽、圆领衫、腰带焉公服。
文武官常服：洪武三年定，凡常朝视事，以乌纱帽、团领衫、束带为公服。
The daily attire of civil and military officials. Stipulated in the third year of the Hongwu period, the official dress worn for normal court presentations and the handling of government affairs was a black gauze cap, round-collared blouse, and belt.