Al-Kāfi - The Book of Supplication

Al-Kāfi - The Book of Supplication Chapter: Asking Favors from Allah for the Holy Prophet, Muhammad and his Family, recipient of divine supreme covenant ِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ جَعْفَرِ بْنِ ٠َّدٍ الأشْعَرِيِّ عَنِ ابْنِ الْقَدَّاحِ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلا٠) قَالَ قَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) ٠َنْ صَلَّى عَلَيَّ صَلَّى الله عَلَيْهِ وَ٠َنْ شَاءَ فَلْيُقِلَّ وَ٠َنْ شَاءَ فَلْيُكْثِرْ.

It is up to people to perform this (noble) act very little or a great deal.’” ضعيف - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (12/98))