Chapter 3 · verse 4 · gita.yoga.org

Bhagavad Gita 3.4

न कर्मणामनारम्भान्नैष्कर्म्यं पुरुषोऽश्नुते। न च संन्यसनादेव सिद्धिं समधिगच्छति

Man does not reach actionlessness by not performing actions; nor does he attain perfection by mere renunciation.