Bhagavatapurana 4.30.20

4.30.20

navyavad dhṛdaye yaj jño brahmaitad brahma-vādibhiḥ /
na muhyanti na śocanti na hṛṣyanti yato gatāḥ //

20. Since I am the omniscient Brahman itself and (every moment) enter into the heart of those who hear of Me from those that are versed in the Vedas, they do not lose their understanding: they have neither grief nor joy, since they have attained to me.