"The Messenger of Allah ﷺ commanded us to do seven things and forbade us seven. He commanded us to visit the sick, to follow funeral processions, to accept an invitation, to spread the greeting of peace, to respond to one who sneezes, to help fulfill an oath, and to support the wronged. And he forbade us gold rings, silver vessels, silk, brocade, heavy embroidered silk, red saddle cloths, and garments of Qass." He also said that he forbade us vessels of gold and silver.
حدثنا أبو داود عمر بن سعد عن سفيان مثله ولم يذكر فيه إفشاء السلام وقال نهانا عن آنية الذهب والفضة
Its isnad is sahih. Abu Dawud is al-Hafari, whose name is Umar bin Saad as he himself made clear, and he is trustworthy and virtuous.