Bhagavad Gita Chapter 18 Verse 9

Gita 18.9

कार्यम्, इति, एव, यत्, कर्म, नियतम्, क्रियते, अर्जुन,
संगम्, त्यक्त्वा, फलम्, च, एव, सः, त्यागः, सात्त्विकः, मतः।।9।।

Gita 18.9

Kaaryam’, iti, ev yat’, karm, niyatm’, kriyate, Arjun,
Sangam’, tyaktva, falam’, ch, ev, saH, tyaagH, saatvikH, matH ||9||

Translation: (Arjun) Oh Arjun! (yat’) which (niyatm’) scripture-based (karm) action (kaaryam’) it is a duty to perform it (iti, ev) with this belief (sangam’) attachment (ch) and (falam’) fruit (tyaktva) by abandoning (kriyate) is performed (saH, ev) that only (saatvikH) Satvik (tyaagH) Tyaag (matH) is considered to be. (9)

Translation: A scripture-based action which is performed with this belief that it is a duty to perform it, by abandoning attachment and fruits, is only considered to be a Satvik Tyaag.