It was narrated from Abu Sa'eed Al-Khudri: A man came from Al-Bahrain to the Prophet [SAW] and greeted him with Salam, but he did not return his greeting. He was wearing a gold ring on his hand, and was wearing a silken Jubbah. He took them off, then he greeted him with Salam, and he returned his greeting. Then he said: 'O Messenger of Allah, I came to you just now, and you turned away from me.' He said: 'You had a coal of fire on your hand.' He said: 'Then I have brought many coals.' He said: 'What you have brought with you is no better for us than the stones of Al-Harrah, but it is a temporary convenience of this world.' He said: 'What should I use for a ring?' He said: 'A ring of iron or silver or brass.'
It was narrated that Anas said: The Messenger of Allah [SAW] came out wearing a silver ring. He said: 'Whoever wants to make a ring like this, let him do so, but do not put the same inscription.'
It was narrated that Anas bin Malik said: The Messenger of Allah [SAW] put on a ring, and he had some words inscribed on it. He said: 'We have put on a ring and have had some words engraved on it; no one of you should copy this inscription.' Then Anas said: It is as if I can see its whiteness on his hand.