Śatapatha Brāhmaṇa ("of a hundred paths") 10.6.2.2

10.6.2.2

sa vai yaḥ so'ttāgnireva saḥ tasminyatkiṃ cābhyādadhatyāhitaya evāsya tā āhitayo ha vai tā āhutaya ityācakṣate paro'kṣam paro'kṣakāmā hi devāḥ

Now that eater is the same as this Agni (the fire and fire-altar); and whatever they assign to him is his assignments; and these assignments (âhiti) are mystically called oblations (âhuti), for the gods love the mystic.