Gobhilagrihyasutra 3.7.13

3.7.13

sakṛtsaṃgṛhītān darvyā saktūn kṛtvā, pūrva upalipta udakaṃ ninīya baliṃ nivapati yaḥ prācyāṃ diśi sarparāja eṣa te balir iti;

He takes once a quantity of flour with the Darvi spoon, pours out water on the besmeared place to the east (of the fire), and offers (there) a Bali with (the words), 'O king of Serpents, dwelling towards the east, this is thy Bali!' (MB. II, 1, 1).