Hawzah News Agency - Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Faddal from al-Hassan ibn al-Jahm that he heard (Imam) al-Ridha saying:

صَدِيقُ كُلِّ امْرِئٍ عَقْلُهُ وَعَدُوُّهُ جَهْلُهُ.

“The friend of every person is his intellect and his enemy is ignorance.”

Al-Kāfi, v.1