Bhagavad Gita 3.27

Action is the product of the qualities inherent in nature. It is only the ignorant man who, misled by personal egotism, says, "I am the doer."

प्रकृतेः क्रियमाणानि गुणैः कर्माणि सर्वशः।
अहङ्कारविमूढात्मा कर्ताऽहमिति मन्यते॥

prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ|
ahaṅkāravimūḍhātmā kartā'hamiti manyate||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).