Śatapatha Brāhmaṇa ("of a hundred paths") 5.1.2.7

5.1.2.7

apāṃ rasamudvayasaṃ sūrye santaṃ samāhitamapāṃ rasasya yo rasastaṃ vo gṛhṇāmyuttamamupayāmagṛhīto 'sīndrāya tvā juṣṭaṃ gṛhṇāmyeṣa te yonirindrāya tvā juṣṭatamamiti sādayatyeṣa vā apāṃ raso yo 'yam pavate sa eṣa sūrye samāhitaḥ sūryātpavata etamevaitena rasamujjayati

[The fourth with V. S. IX, 3,] 'The waters’ invigorating essence, being contained in the sun,--that which is the essence of the waters’ essence, that, the most excellent, I take for you! Thou art taken with a support: I take thee, agreeable to Indra! This is thy womb: thee, most agreeable to Indra!' therewith he deposits it; for the waters’ essence is he that blows (or purifies) yonder (the wind), and he is contained in the sun, he blows from the sun: that same essence he thereby wins.