कार्यमित्येव यत्कर्म नियतं क्रियतेऽर्जुन। सङ्गं त्यक्त्वा फलं चैव स त्यागः सात्त्विको मतः॥
kāryamityeva yatkarma niyataṃ kriyate'rjuna saṅgaṃ tyaktvā phalaṃ caiva sa tyāgaḥ sāttviko mataḥ
Meaning
He who performs an obligatory action, believing it to be a duty that ought to be done, without any personal desire to do the act or to receive any return—such renunciation is pure.
English translation by Shri Purohit Swami (1935), public domain. Sanskrit text in the public domain. About Duvidha