(4) باب مَا جَاءَ فِي خَاتَمِ الْحَدِيدِ
Iyas b. al-Harith b. al-Mu'aiqib quoting his grandfather said and his grandfather from his mother's side was Abu Dhubab:
The signet-ring of the Prophet (ﷺ) was of iron polished with silver. Sometimes it remained in my possession. Al-Mu'ayqib was in charge of the signet-ring of the Prophet (ﷺ). (PT)
Reference (PT): Sunan Abi Dawud 4224 (PT)
In-book reference (PT): Book 36, Hadith 11 (PT)
English translation (PT): Book 35, Hadith 4212 (PT)