Al-Kāfi

4. It is narrated from the narrator of the previous Hadith from Ahmad ibn Muhammad from ibn Abu Nasr who has said the following: “I once was with Abu al-Hassan, al-Rida’ (a.s.), and he (the Imam) showed us the ring of Abu ‘Abd Allah, and Abu al-Hassan (a.s.). On the ring of Abu ‘Abd Allah (a.s.), it said, ‘You are my trusty so protect me from people. ’ The engraving on the ring of Abu al- Hassan (a.s.), said, ‘Allah is sufficient for me’ and there was a flower and a crescent on its upper part.’”