Narrated Al-Bara' bin `Azib: The Prophet forbade us to use seven things: He forbade using gold rings, silk, Istabraq, Dibaj, red Mayathir, Al-Qassiy, and silver utensils. He ordered us to do seven other things. To pay a visit to the sick; to follow funeral processions; to say, "May Allah be merciful to you" to a sneezer if he says "Praise be to Allah"; to return greetings, to accept invitations; to help others to fulfil their oaths and to help the oppressed ones.
Hadith Referenceصحيح البخاري / كتاب اللباس / 5863
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة
Narrated `Abdullah: Allah's Apostle wore a gold or silver .. ring and placed its stone towards the palm of his hand. The people also started wearing gold rings like it, but when the Prophet saw them wearing such rings, he threw away that golden ring and then wore a silver ring.
Hadith Referenceصحيح البخاري / كتاب اللباس / 5865
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة