311. hadíth
وَقَالَ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: «مَنْ أَخَذَ مِنْ أَظْفَارِهِ كُلَّ يَوْمِ خَمِيسٍ ' لَمْ يَرْمَدْ وَلَدُهُ.
Imam Muhammad ibn Ali Al-Baqir (a.s) said: "Whoever trims their nails every Thursday, their child will not suffer from eye ailments”.