Bhagavad Gita 18.9

कार्यमित्येव यत्कर्म नियतं क्रियतेऽर्जुन ।
सङ्गं त्यक्त्वा फलं चैव स त्याग: सात्त्विको मत: ॥

kāryam-ity-eva yat-karma niyataṃ kriyate’rjuna
saṅgaṃ tyaktvā phalaṃ caiva sa tyāga: sāttviko mata: – 9

O Arjuna, when a properly regulated action is performed because it has to be done, abandoning saṅga (delusional clinging) and desire for gain, that renunciation is considered sāttvika.