Al-Kāfi - The Book of Belief and Disbelief

Al-Kāfi - The Book of Belief and Disbelief Chapter: Superiority of Belief over Islam and Certainty over Belief ِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ وَالْحُسَيْنُ بْنُ ٠ِيعاً عَنِ الْوَشَّاءِ عَنْ أَبِي الْحَسَنِ (عَلَيهِ السَّلا٠ِعْتُهُ يَقُولُ الإي٠َانُ فَوْقَ الإسْلا٠ِ بِدَرَجَةٍ وَالتَّقْوَى فَوْقَ الإي٠َانِ بِدَرَجَةٍ وَالْيَقِينُ فَوْقَ التَّقْوَى بِدَرَجَةٍ وَ٠َ فِي النَّاسِ شَيْ‏ءٌ أَقَلُّ ٠2.

A number of our people have narrated from Sahl ibn Ziyad and al-Husayn ibn Muhammad from Mu’alla ibn Muhammad all from al-Washsha’ who has said the following: “I heard abu Al-Hassan (a.s.) saying, ‘Belief is above Islam by one degree. Piety is above belief by one degree. Certainty is above piety by one degree. Nothing is distributed so little among people as certainty is.’” عتبر - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (7/325))