Śatapatha Brāhmaṇa ("of a hundred paths") 3.8.3.7

3.8.3.7

tadyatpṛcati | śṛtena pracarāṇīti tadyadyaśṛtam bhavati śṛtameva devānāṃ havirbhavati śṛtaṃ yajamānasyānenā adhvaryurbhavati śamitari tadeno bhavati triṣkṛtvaḥ pṛcati trivṛddhi yajño 'tha yadāha taddevānāmiti taddhi devānāṃ yacūtaṃ tasmādāha taddevānāmiti

And again, why he asks. 'I will perform with cooked (food),' so he thinks; and if that sacrificial food be uncooked, it is yet cooked food for the gods, and is cooked as regards the Sacrificer; and the Adhvaryu is guiltless; on the slaughterer that guilt lies. Thrice he asks, for threefold is the sacrifice. And as to his saying, 'That is of the gods,' that which is cooked, indeed, belongs to the gods; therefore he says, 'That is of the gods.'