Abu Dawud
Signet Rings
Book Number: 029 / Hadith Number: 4220
Narated By Arfajah ibn As'ad : Abdur Rahman ibn Tarafah said that his grandfather Arfajah ibn As'ad who had his nose cut off at the battle of al-Kilab got a silver nose, but it developed a stench, so the Prophet (pbuh) ordered him to get a gold nose.