The Book of Intelligence and Ignorance
Al-Kāfi|Volume 1|Book 1|Chapter 0
24ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ إِسْمَاعِيلَ بْنِ مِهْرَانَ عَنْ بَعْضِ رِجَالِهِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ الْعَقْلُ دَلِيلُ الْمُؤْمِنِ.
24. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from ’Isma‘il ibn Mihran from one of his people that Abu ‘Abdillah (al-Sadiq) عليه السلام said: “Intelligence (al-'Aql) is the guide of a believer.”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (1/84)
- Ṣaḥīḥ al-Kāfī