Chapter 3 · verse 27 · gita.yoga.org
Bhagavad Gita 3.27
प्रकृतेः क्रियमाणानि गुणैः कर्माणि सर्वशः। अहङ्कारविमूढात्मा कर्ताऽहमिति मन्यते
All actions are wrought in all cases by the qualities of Nature alone. He whose mind is deluded by egoism thinks, "I am the doer."