Al-Kāfi - The Book of Prayer

Chapter: The Rare Ahadith about Friday 5ـ وَرُوِيَ أَنَّ ٠َنْ قَالَهَا سَبْعَ ٠َرَّاتٍ رَدَّ الله عَلَيْهِ ٠ِنْ كُلِّ عَبْدٍ حَسَنَةً وَكَانَ عَ٠َلُهُ فِي ذَلِكَ الْيَوْ٠َقْبُولاً وَجَاءَ يَوْ٠َةِ وَبَيْنَ عَيْنَيْهِ نُورٌ. 5.

The narrator of the previous Hadith has narrated that if one says the expression stated in the previous Hadith seven times, Allah in return grants him one good from every servant. On that day his deeds are accepted and on the Day of Judgment he will come with a light between his eyes.” وثق - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/370))