Brahmapurana 49.68

Brahmapurāṇa 49.68

ye taṃ susūkṣmaṃ vimalā murāriṃ
dhyāyanti nityaṃ puruṣaṃ purāṇam
te muktibhājaḥ praviśanti viṣṇuṃ
mantrair yathājyaṃ hutam adhvarāgnau