Imam Musa Al-Kadhim (a.s)
Ref: Al-Islam.org

Forty Traditions from Imam Musa Kazim (as)

اربعون حديثاً عن الامام موسی الکاظم عليه السلام

 وَجدتُ عِلمَ النّاسِ في أَربَعٍ :اوَّلُها أَن تَعرِفَ رَبَّکَ وَالثّانِيَةُ أَن تَعرِفَ ما صَنَعَ بِکَ، وَالثّالِثَةُ،أَن تَعرِفَ ما أَرادَ مِنکَ ،وَالرّابِعَةُ أَن تَعرِفَ ما يُخرِجُکَ عَن دِينِک

I found the people’s knowledge in four: firstly, that you know your Lord (recognition of Allah); secondly, that you know with what he created you; thirdly, that you know intends from you; fourthly, that you learn what will expel you from your religion.