Al-Adab Al-Mufrad #1024

Muhammad ibn 'Abdullah reported that a man came to the Prophet, may Allah bless him and grant him peace, wearing a gold signet-ring on his finger. The Prophet, may Allah bless him and grant him peace, turned away from him. When the man saw his dislike of the gold, he threw the ring away. He made an iron ring and wore that. He came to the Prophet, may Allah bless him and grant him peace, who said, "This is worse. This is the ornament of the people of the Fire." The man went away, threw it off and put on a silver ring and the Prophet, may Allah bless him and grant him peace, did not say anything about it."