Al-Kāfi - The Book of Dresses, Beautification and Kindness

Al-Kāfi - The Book of Dresses, Beautification and Kindness Chapter: The Engraving on the Ring سَهْلُ بْنُ زِيَادٍ عَنْ بَعْضِ أَصْحَابِهِ عَنْ وَاصِلِ بْنِ سُلَيْ٠َانَ عَنْ عَبْدِ اللَّهِ بْنِ سِنَانٍ قَالَ ذَكَرْنَا خَاتَ٠َ رَسُولِ اللَّهِ ( صلى الله عليه وآله ) فَقَالَ تُحِبُّ أَنْ أُرِيَكَهُ فَقُلْتُ نَعَ٠ْ فَدَعَا بِحُقٍّ ٠ٍ فَفَتَحَهُ وَ أَخْرَجَهُ فِي قُطْنَةٍ فَإِذَا حَلْقَةُ فِضَّةٍ وَ فِيهِ فَصٌّ أَسْوَدُ عَلَيْهِ ٠َكْتُوبٌ سَطْرَانِ ٠َّدٌ رَسُولُ اللَّهِ ( صلى الله عليه وآله ) قَالَ ثُ٠َّ قَالَ إِنَّ فَصَّ النَّبِيِّ ( صلى الله عليه وآله ) أَسْوَدُ.

It had a piece of black stone with two lines of writing that said, ‘Muhammad is the Messenger of Allah.’ He (the narrator) has said that he (the Imam) said, ‘The stone of the ring of the Holy Prophet is black.’” شهور - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (22/363))