Śatapatha Brāhmaṇa ("of a hundred paths") 3.6.1.21

3.6.1.21

atha sruveṇopahatyājyam | viṣṭapamabhi juhoti ghṛtena dyāvāpṛthivī pūryethāmiti tadime dyāvāpṛthivī ūrjā rasena bhājayatyanayorūrjaṃ rasaṃ dadhāti te rasavatyā upajīvanīye imāḥ prajā upajīvanti

Thereupon, having taken clarified butter with the dipping-spoon, he pours it upon the (forked) top, with 'O Heaven and Earth, be ye full of ghee!' whereby he endows the heaven and the earth with strength and sap, bestows strength and sap on them: upon them thus full of sap and affording subsistence, these creatures subsist.