Sayyiduna Dihyah al-Kalbi (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) took some Coptic garments and gave me one Coptic garment (qubtiyyah), and said: "Split it into two parts; cut one into a shirt and give the other to your wife so that she may make a head-covering of it." When I turned to leave, he said: "Tell your wife to put another garment beneath it so that her body is not shown."
Hadith Referenceالمعجم الكبير للطبراني / باب الدال / 4184