Śatapatha Brāhmaṇa ("of a hundred paths") 9.3.4.3

9.3.4.3

yadvevaitadvājaprasavīyaṃ juhoti | abhiṣeka evāsyaiṣa etadvā etaṃ devā etenānnena prītvaitaiḥ kāmairabhiṣicyaitayā vasordhārayāthainametadbhūya evābhyaṣiñcaṃstathaivainamayametadetenānnena prītvaitaiḥ kāmairabhiṣicyaitayā vasordhārayāthainametadbhūya evābhiṣiñcati

And, again, as to why he offers the Vâgaprasavîya. This, to be sure, is his (Agni's) Abhisheka. For, the gods, having gratified him by that food, and consecrated him by those objects of desire, (to wit) by that shower of wealth, then by this (offering) consecrated him once more; and in like manner does this (Sacrificer), having gratified him by that food, and consecrated him by those objects of desire, that shower of wealth, hereby consecrate him once more.