Bhagavad Gita 3.22

There is nothing in this universe, O Arjuna, that I am compelled to do, nor anything for me to attain; yet I persistently remain active.

न मे पार्थास्ति कर्तव्यं त्रिषु लोकेषु किञ्चन।
नानवाप्तमवाप्तव्यं वर्त एव च कर्मणि॥

na me pārthāsti kartavyaṃ triṣu lokeṣu kiñcana|
nānavāptamavāptavyaṃ varta eva ca karmaṇi||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).