الكافي 2/1/66/13

13. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Muhammad ibn Sinan from Yusuf ibn ‘Imran ibn Maytham from Ya’qub ibn Shu’ayb from Abu ‘Abdillah عليه السلام who has said the following: “Allah, the Most Majestic, the Most Holy, sent a revelation to Adam that said, ‘I will gather together all words for you in four words.’ He asked, ‘O Lord, what are they?’ He said, ‘One is for Me, one for you, one between Me and you and one between you and other people.’ He then said, ‘O Lord, explain them to me so I can learn.’ He said, ‘The one for Me is to worship Me and do not consider anything as My partner. The one for you is that I will reward you for your deed with something that you need most. The one between Me and you is that you pray and I will accept and answer your prayers. The one between you and people is that you must like for people what you like for yourself and dislike for people what you dislike to happen to you.’”