Nahj al-Balāgha

Hadith 1952
governance
۳۹۳. وَقَالَ (عليه ‏السلام): خُذْ مِنَ الدُّنيْا مَا أَتَاكَ، وَتَوَلَّ عَمَّا تَوَلَّى عَنْكَ، فَإِنْ أَنْتَ لَمْ تَفْعَلْ فَأَجْمِلْ فِي الطَّلَبِ.
393. Amīr al-mu’minīn, peace be upon him, said: Take off the favours of the world whatever comes to you and keep away from what keeps away from you. If you cannot do so be moderate in your seeking.
Source: al-Sharīf al-Raḍī