Śatapatha Brāhmaṇa ("of a hundred paths") 3.3.1.4

3.3.1.4

sa juhoti | adityāstvā mūrdhannājigharmītīyaṃ vai pṛthivyaditirasyai hi mūrdhanjuhoti devayajane pṛthivyā iti devayajane hi pṛthivyai juhotīḍāyāspadamasi ghṛtavatsvāheti gaurvā iḍā gorhi pade juhoti ghṛtavatsvāheti ghṛtavaddhyetadabhihutam bhavati

He (the Adhvaryu) offers (with the text, Vâg. S. IV, 22), 'On Aditi's head I pour thee;' for Aditi being this earth, it is on the head of the latter that he offers;--'on the worshipping-ground of the earth'--for on the worshipping-ground of the earth he indeed offers;--'Thou art Idâ's footprint, filled with butter, Hail!' for Idâ being the cow, he indeed offers on the cow's foot-print; and 'filled with butter, Hail!' he says, because it indeed becomes filled with butter when offered upon.