Salim bin 'Abdullah bin 'Umar سالم بن عبد الله بن عمر بن الخطاب · The Book of Adornment

"The Messenger of Allah forbade me (from wearing) garments dyed with safflower, and from gold rings, and from wearing Al-Qassi, and that I recite Qur'an while I am bowing."

"The Messenger of Allah said to me: 'Say: O Allah, guide me and make me steadfast,' and he forbade me to put a ring on this one and this one" - and Bishr (one of the narrators) pointed to his forefinger and middle finger. And 'Asim said: "One of the two of them."

The Messenger of Allah had a ring made of gold and he used to wear it with the stone (Fass) against his palm, and the people did likewise. Then he sat on the Minbar and said: "I used to wear this ring and put its stone (Fass) on the inside." Then he threw it away and said: "By Allah, I will never wear it again." And the people threw their rings away.

He came to the Prophet got angry and said: "Go and take them off." He said: "Where should I throw them, O Messenger of Allah?" He said: "In the fire."

He heard the Prophet say in 'Arafat: "Whoever cannot find an Izar (waist wrapper), let him wear trousers, and whoever cannot find sandals, let him wear Khuffs (leather socks)."

The Messenger of Allah said: "While a man was dragging his Izar out of pride, the earth swallowed him up, and he will continue sinking into it until the Day of Resurrection."