Śatapatha Brāhmaṇa ("of a hundred paths") 6.3.3.17

6.3.3.17

yadvevaite āhutī juhoti | mṛdaṃ ca tadapaśca prīṇāti te iṣṭvā prītvāthaine sambharati vyatiṣaktābhyāṃ juhoti mṛdaṃ ca tadapaśca vyatiṣajati

And, again, why he offers these two libations;--he thereby gratifies both the clay and the water; and having offered to, and gratified, these two, he then brings them together. With two interlinked (verses) he offers: he thereby interlinks (combines thoroughly) the clay and the water.