Śatapatha Brāhmaṇa ("of a hundred paths") 2.5.3.6

2.5.3.6

atha dve piśīle vā pātryau vā nirṇenijati | tayorenaṃ dvedhoddharanti tayormadhye sarpirāsecane kṛtvā sarpirāsiñcati sruvaṃ ca srucaṃ ca sammārṣṭyathaitā odanāvādāyodaiti sruvaṃ ca srucaṃ cādāyodaiti sa imāmeva stīrṇāṃ vedimabhimṛśya paridhīnparidhāya yāvataḥ śakalān kāmayate tāvato 'bhyādadhātyathaitā odanāvāsādayati sruvaṃ ca srucaṃ cāsādayatyupaviśati hotā hotṛṣadane sruvaṃ ca srucaṃ cādadāna āha

They then rinse either two plates or two dishes, and put that (pap) thereon in two equal parts. Having then made a hollow in each (pap), he (the Adhvaryu) pours clarified butter therein, and wipes both the dipping-spoon and the offering-spoon. Thereupon he takes the two dishes of pap, and walks up (to the altar); and again, he takes the dipping and offering spoons, and walks up; and having touched the covered altar, and laid the enclosing-sticks round (the fire), he puts on as many pieces of firewood as he thinks fit. He then deposits those two dishes of pap, and the dipping and offering spoons, in their places (outside the altar). The Hotri sits down on the Hotri's seat. Taking the dipping and offering spoons, he (the Adhvaryu) says,--