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).

تلتقي أسانيد هذه الأحاديث عند أبي مكين (ت ١٥٣) — يمر به ٩ من ١٠ إسناداً، على ٢ رواة في أعلاها.