Al-Imam Ali (p.b.u.h), said:

Hadith n. 43

Amir al-mu’minin, peace be upon him, said about Khabbab ibn al-Aratt:

May Allah have mercy on Khabbab ibn al-Aratt since he accepted Islam willingly, immigrated (from Mecca) obediently, remained content with what sufficed him, was pleased with Allah and lived the life of a mujahid (holy soldier).

Hadith n. 44

Amir al-mu’minin, peace be upon him, said: Blessed is the person who kept in mind the next life, acted so as to be able to render account, remained content with what sufficed him and remained pleased with Allah.

Hadith n. 45

Amir al-mu’minin, peace be upon him, said: Even if I strike the nose of a believer with this, my sword, for hating me he will not hate me, and even if I pile all the wealth of the world before a hypocrite (Muslim) for loving me he will not love me. This is because it is a verdict pronounced by the tongue of the revered Prophet, may Allah bless him and his descendants, as he said:

O `Ali, a believer will never hate you and a hypocrite (Muslim) will never love you.

Hadith n. 46

Amir al-mu’minin, peace be upon him, said: The sin that displeases you is better in the view of Allah than the virtue which makes you proud.

Source: https://www.al-islam.org/nahjul-balagha-part-2-letters-and-sayings