Muhammad bin Usamah bin Zayd narrates from his father, Sayyiduna Usamah (may Allah be pleased with him), that the Prophet (peace and blessings be upon him) clothed him in a Coptic garment from what Dihyah al-Kalbi had given him (peace and blessings be upon him) as a gift, and I gave it to my wife to wear. The Messenger of Allah (peace and blessings be upon him) asked: "Why do you not wear the Coptic garment?" I said: I have given it to my wife to wear. He (peace and blessings be upon him) said: "Tell her to wear an undergarment beneath it, for I fear that it may show the shape of her bones."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 373