Bhagavatapurana 2.9.34

2.9.34

yathā mahānti bhūtāni bhūteṣūccāvaceṣvanu /
praviṣṭānyapraviṣṭāni tathā teṣu na teṣvaham //

34. Just as the great Bhutas (the principles of material cause) may be said to have entered and not to have entered into created things, great and small, after creation (in the created form), so also I am in them as well as not in them.