Varahapurana 187.26

Varāhapurāṇa 187.26

nāgā bhūtāni yajñāśca ye ca sthāvarajaṅgamāḥ ..
snānaṃ kṛtvā yathā devi tava pṛṣṭhe pratiṣṭhitāḥ .. 26 ...