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

Hadith n. 109
Amir al-mu’minin, peace be upon him, said: We (the members of the Prophet’s family) are like the pillow in the middle. He who lags behind has to come forward to meet it while he who has exceeded the bounds has to return to it.

Hadith n. 110
Amir al-mu’minin, peace be upon him, said: No one can establish the rule of Allah, the Glorified, except he who shows no relenting (in the matter of right), who does not behave like wrongdoers and who does not run after objects of greed.

Hadith n. 111
Amir al-mu’minin, peace be upon him, said: Sahl ibn Hunayf al-Ansari died at Kufah after his return from the battle of Siffin and he was very much loved by Amir al-mu’minin, peace be upon him. On this occasion Amir al-mu’minin said: Even if a mountain had loved me, it would have crumbled down.

As-Sayyid ar-Radi says: The meaning of this is that since the trial of the man who loves Amir al-mu’minin will be so, severe troubles would leap towards him, and this is not the case except with the God-fearing, the virtuous and select good. There is another similar saying of Amir al-mu’minin’s individuals, namely:

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