Verse 42

अन्तःकरणमेवातः कारणं भूतसंसृतौ ।आत्मा सर्वातिगत्वात्तु कारणं सदकारणम्

In plain words

Therefore the inner faculty alone is the cause in the round of beings; but the Self, since it transcends all, though it is the cause, is no cause.