عَنْهُ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ قَالَ كُنْتُ عِنْدَ أَبِي الْحَسَنِ الرِّضَا ( عليه السلام ) فَأَخْرَجَ إِلَيْنَا خَاتَمَ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) وَ خَاتَمَ أَبِي الْحَسَنِ ( عليه السلام ) وَ كَانَ عَلَى خَاتَمِ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) أَنْتَ ثِقَتِي فَاعْصِمْنِي مِنَ النَّاسِ وَ نَقْشُ خَاتَمِ أَبِي الْحَسَنِ ( عليه السلام ) حَسْبِيَ اللَّهُ وَ فِيهِ وَرْدَةٌ وَ هِلَالٌ فِي أَعْلَاهُ .
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’ , and he (the Imam) showed us the ring of abu ‘Abd Allah, and abu al-Hassan, ‘Alayhim al-Salam. On the ring of abu ‘Abd Allah , it said, ‘You are my trusty so protect me from people. ’ The engraving on the ring of abu al- Hassan , said, ‘Allah is sufficient for me’ and there was a flower and a crescent on its upper part.’” 