Skandapurana 17.18.272

17.18.272

tāvadbrahmāṃḍavego'yaṃ virāḍiti hi saṃjñitaḥ ..
sa sarva bījarūpo hi paramātmeti gadyate .. 272 ..

Now this force of the egg of Brahmā is indeed called Virāj; / he, of the nature of the seed of all, is spoken of as the Supreme Self.