Nahj al-Balāgha

Hadith 1825
governance
٢٤٩. وَقَالَ (عليه ‏السلام): أَفْضَلُ الْأَعْمَالِ مَا أَكْرَهْتَ نَفْسَكَ عَلَيْهِ.
249. Amīr al-mu’minīn, peace be upon him, said: The best act is that which you have to force yourself to do.
Source: al-Sharīf al-Raḍī