One verse

Bhagavad Gita 3.27

3.27

प्रकृतेः क्रियमाणानि गुणैः कर्माणि सर्वशः | अहङ्कारविमूढात्मा कर्ताहमिति मन्यते ||३-२७||

prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ . ahaṅkāravimūḍhātmā kartāhamiti manyate ||3-27||

prakṛteḥ
of material nature
kriyamāṇāni
being done
guṇaiḥ
by the modes
karmāṇi
activities
sarvaśaḥ
all kinds of
ahaṅkāra-vimūḍha
bewildered by false ego
ātmā
the spirit soul
kartā
doer
aham
I
iti
thus
manyate
he thinks

The spirit soul bewildered by the influence of false ego thinks himself the doer of activities that are in actuality carried out by the three modes of material nature.