Śatapatha Brāhmaṇa ("of a hundred paths") 8.2.2.1

8.2.2.1

atha vaiśvadevīrupadadhāti | eṣā vai sā dvītīyā citiryāmebhyastadaśvinā upādhattāṃ tāmupadhāyedaṃ sarvamabhavatāṃ yadidaṃ kiṃ ca

He then lays down the Vaisvadevî (All-gods’ bricks). For this second layer is that one which the Asvins at that time laid down for them (the gods); and by laying it down they became everything here whatsoever there is here.