It wasnarrated from Sa'ib bin Yazid, if Allah wills, that theProphet(ﷺ) wore two coats of mail on the Day of Uhud, one over theother. (RU)
English reference (RU): Vol. 4, Book 24, Hadith 2806 (RU)
Arabic reference (RU): Book 24, Hadith 2913 (RU)