Śatapatha Brāhmaṇa ("of a hundred paths") 5.3.4.8

5.3.4.8

atha yāḥ syandamānānām pratīpaṃ syandante | tā gṛhṇātyojasvatī stha rāṣṭradā rāṣṭram me datta svāhaujasvatī stha rāṣṭradā rāṣṭramamuṣmai datteti tābhirabhiṣiñcati vīryeṇa vā etāḥ syandamānānām pratīpaṃ syandante vīryeṇaivainametadabhiṣiñcatyetā vā ekā āpastā evaitatsambharati

He then takes such (water) as flows against the stream of the flowing water with, 'Powerful ye are, bestowers of kingship: bestow ye kingship on me, hail!--Powerful ye are, bestowers of kingship: bestow ye kingship on N.N.!' With that (water) he sprinkles, for with vigour indeed those (waters) flow against the stream of the flowing ones: it is with vigour he thus sprinkles him. This is one kind of water: it is that he now brings.