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

صَدِيقُ كُلِّ امْرِئٍ عَقْلُهُ وَعَدُوُّهُ جَهْلُهُ.

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

Al-Kāfi, v.1