Hawzah News Agency - A number of our people has narrated from Ahmad ibn Muhammad ibn Khalid from his father from one he mentioned from Zayd al-Shahham from abu Ja’far who has said the following.

فَلْيَنْظُرِ الانْسانُ إِلى‏ طَعامِهِ قَالَ قُلْتُ مَا طَعَامُهُ قَالَ عِلْمُهُ الَّذِي يَأْخُذُهُ عَمَّنْ يَأْخُذُهُ.

“It is his knowledge that he acquires from whoever he acquires.” This he said in answer to the question ‘What is his food’ in the words of Allah, “Let the human being think about (how We produce) his food.” (80:24)?’

Al-Kāfi, v.1, Book 2, Chapter 16