Matsyapurana 10.19

10.19

antakaścābhavaddogdhā yamo vatsaḥ svadhā rasaḥ
alābupātraṃ nāgānāṃ takṣako vatsako 'bhavat //

Then Antaka, after making the God of death the calf, milked the (earth) cow and took out Svadhâ from it. Similarly, the Nâgas, after making Takṣaka the calf and Dhṛitarâṣtra as the milkman, got out poison in a gourd, and the Asurâs, making Virochana the calf and Dvimûrdhâ as milkman, pressed out Mâyâ into a pot of iron. The Yakṣas pressed out in an earthen pot the knowledge of making themselves invisible after making Kuvêra the calf.—19-22.