Bhagavad Gita · 3.18

नैव तस्य कृतेनार्थो नाकृतेनेह कश्चन।न चास्य सर्वभूतेषु कश्चिदर्थव्यपाश्रयः॥

naiva tasya kṛtenārtho nākṛteneha kaśhchana na chāsya sarva-bhūteṣhu kaśhchid artha-vyapāśhrayaḥ

For the self-realized person, there is no purpose to be served by action or inaction. Such a one has no dependence on any being for any purpose.

— Bhagavad Gita 3.18

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)