Shatapatha Brahmana 5.3.4.11

5.3.4.11

atha niveṣyaṃ gṛhṇāti | apāṃ garbho 'si rāṣṭradā rāṣṭram me dehi svāhāpāṃ garbho 'si rāṣṭradā rāṣṭramamuṣmai dehīti tābhirabhiṣiñcati garbhaṃ vā etadāpa upaniveṣṭante viśāmevainametadgarbhaṃ karotyetā vā ekā āpastā evaitatsambharati

He then takes (water from) a whirlpool with, 'Thou art the offspring of the waters, a bestower of kingship: bestow thou kingship on me, hail!--Thou art the offspring of the waters, a bestower of kingship: bestow thou kingship on N.N.!' With that (water) he sprinkles. Now the waters enclose the offspring (embryo): he thus makes him the offspring of the people. This is one kind of water: it is that he now brings.