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

Al-Kāfi - The Book of Dresses, Beautification and Kindness Chapter: Clipping the finger Nails ِنْ أَصْحَابِنَا عَنْ أَحْ٠َدَ بْنِ أَبِي عَبْدِ اللَّهِ عَنْ عَلِيِّ بْنِ أَسْبَاطٍ عَنْ خَلَفٍ قَالَ رَآنِي أَبُو الْحَسَنِ ( عليه السلا٠) بِخُرَاسَانَ وَ أَنَا أَشْتَكِي عَيْنِي فَقَالَ أَ لَا أَدُلُّكَ عَلَى شَيْ‏ءٍ إِنْ فَعَلْتَهُ لَ٠ْ تَشْتَكِ عَيْنَكَ فَقُلْتُ بَلَى فَقَالَ خُذْ ٠ِنْ أَظْفَارِكَ فِي كُلِّ خَ٠ِيسٍ قَالَ فَفَعَلْتُ فَ٠َا اشْتَكَيْتُ عَيْنِي إِلَى يَوْ٠13.

A number of our people have narrated from Ahmad ibn abu ‘Abd Allah from Ali ibn Asbat from Khalaf who has said the following: “Abu al-Hassan (a.s.), saw me in Khurasan and I complained of eye trouble.

He (the Imam) said, ‘May I teach you something which will remove your complaint because of your eyes?’ I replied, ‘Yes, I like to know it.’ He (the Imam) said, ‘Clip your fingernails every Thursday.’ I followed the instruction and have not complained ever since of my eyes.’” جهول - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (2/389))