Bhagavatapurana 6.16.9

6.16.9

eṣa nityo 'vyayaḥ sūkṣma eṣa sarvāśrayaḥ svadṛk /
ātmamāyāguṇairviśvamātmānaṃ sṛjate prabhuḥ //

9. This Atman is eternal, never subject to change and subtle; he is the one ground on which every thing else rests; he is himself the light; being all-powerful he creates himself in the form of the Universe by means of the gunas of Maya (under his control).