Śatapatha Brāhmaṇa ("of a hundred paths") 4.2.5.11

4.2.5.11

atha stuta etāṃ vācaṃ vadati | agnīdagnīnvihara barhi stṛṇīhi puroḍāśāṃ alaṃkuru paśunehīti viharatyagnīdagnīntsaminddha evainānetatstṛṇāti barhi stīrṇe barhiṣi saminddhe devebhyo juhavānīti puroḍāśāṃ alaṃkurvite puroḍāśairhi pracariṣyanbhavati paśunehīti paśuṃ hyupākarīṣyanbhavati

Thereupon, when the chanting is over, he utters this speech,--'Agnîdh, spread the fires! strew the barhis! Prepare the cakes! go on with the victim!' The Agnîdh spreads the fires, that is to say, kindles them; he strews that barhis, thinking, 'When the barhis is strewn, I will offer to the gods on the kindled (fire).'--'Prepare the cakes,' he says, because he is about to proceed with the cakes; and, 'Go on with the victim,' because he is about to get ready the victim.