Al-Kāfi

Hadith 26
intellect
25ـ الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنِ الْوَشَّاءِ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنِ السَّرِيِّ بْنِ خَالِدٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ قَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) يَا عَلِيُّ لا فَقْرَ أَشَدُّ مِنَ الْجَهْلِ وَلا مَالَ أَعْوَدُ مِنَ الْعَقْلِ.
25. Al-Husayn ibn Muhammad has narrated from Mu‘alla ibn Muhammad from al-Washsha’ from Hammad ibn ‘Uthman from al-Sariy ibn Khalid that Abu ‘Abdillah (al-Sadiq) (as) said: Rasulullah (sw) said, "Oh Ali, no poverty is more sever than ignorance and no wealth is more profitable than intelligence.”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī