الكافي- ط الاسلامية, volume 2, page 237

25. It is narrated from him (narrator of the Hadith above) from Muhammad ibn Ali from Muhammad ibn Sinan from ‘Isa al-Nahriri from abu ‘Abd Allah (a.s.) who has said the following: “The Messenger of Allah has said, ‘Whoever comes to know Allah and realizes His greatness does not allow his mouth to speak or his stomach to eat. He engages his soul in fasting and standing for prayer until it is clean and exhausted.’ They then said, ‘May Allah keep the souls of our parents in service for your cause, O Messenger of Allah, is it not that such people are close friends of Allah?’ The Messenger of Allah then said, ‘The close friends of Allah kept silent and it was considered speaking of Allah, they looked and it served as a good lesson, they spoke and it was wisdom, they walked and that was blessings among the people. Had it not been for the appointed time of their life span that was written down for them, their spirit would not have remained in their bodies for fear of torment and the desire for rewards.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

26. It is narrated from him (narrator of the Hadith above) from certain individuals of his people from the people of Iraq in a marfu’ manner who has said the following: “Al-Hassan ibn Ali (a.s.) once addressed the people saying, ‘I like to tell you about one of my friends who was the greatest in my sight. The head of what was the greatest in my sight about him was the worthlessness of the world in his sight. He was free of the control of his stomach, thus, he did not have any appetite for what he could not find; he, however, would not accede when he did find it. He was out of the control of his private parts and it would not weigh his reason and opinion lightly. He was out of the control of ignorance, thus, he would not extend his hands unless he was confident of its benefits. He did not desire, become angry, or disappointed. Most of the time he remained silent, and when he spoke, he surpassed the speakers. He did not enter in arguments or take part in claims. He would not testify without the presence of a judge. He was not unaware of his brothers (in belief) and did not appropriate anything for himself without them. He was the weakest of the weak people but in serious matters he acted as an advancing lion. He did not blame anyone without a good cause. He would do what he said, and would not say what he would not do. When he became attracted to two things that he did not know which is better he would ignore that which he desired most. He would not complain for any pain before anyone unless he had known that one had a cure for it and would not consult anyone unless he had hope for good advice from him. He did not become frustrated, angered, and did not complain, desire, revenge and did not remain neglectful of his enemies. Therefore, you must acquire such noble moral behaviors if you can. You must acquire the little if you cannot bear the whole. There is no means and power without Allah.”’

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.