Padmapurana 1.48.124

Padmapurāṇa 1.48.124

brahmovācaśṛṇucātrayathātathyaṃbrāhmaṇānāṃgavāṃyathā
ekapiṃḍakriyaikyaṃtupuruṣairnirmitaṃpurā