Bhagavad Gita Chapter 18 Verse 23
नियतम्, संगरहितम्, अरागद्वेषतः, कृतम्,
अफलप्रेप्सुना, कर्म, यत्, तत्, सात्त्विकम्, उच्यते।।23।।
Niyatm’, sangrahitam’, araagdweshatH, krtam’,
Afalprepsuna, karm, yat’, tat’, saatvikam’, uchyate ||23||
Translation: (Yat’) which (karm) an action (niyatm’) scripture-based (sangrahitam’) free from the pride of doership and (afalprepsuna) by the one who is not desirous of any fruit (araagdweshatH) without love and hatred (krtam’) is performed (tat’) that (saatvikam’) Satvik (uchyate) is said to be. (23)
Translation: An action which is scripture-based, free from the pride of doership and is performed without love and hatred by the one who is not desirous of any fruit, that is said to be Satvik.