YV 6.1i

He lets the calf go free and puts the pot on the fire: he puts down (the rice), and beats the millstones together; he scatters (the grains) and collects the potsherds; the cake [3] he puts on the fire and the melted butter; he throws the clump of grass, and gathers it in; he surrounds the Vedi and he girds the wife (of the sacrificer); he puts in place the anointing waters and the melted butter. These are the twelve pairs in the new and full moon sacrifices. He, who thus sacrifices with these, sacrifices with an abundant offering and is multiplied with offspring, with cattle, with pairings. 'Thou I art secure; may I be secure among my equals', he says; verily he makes them secure.' 'Thou art dread; may I be dread among my equals'; verily he makes them harmonious. 'Thou art overcoming; may I be overcoming among my equals,' he says; verily he overthrows him who rises against him. 'I yoke thee with the divine Brahman', he says; this is the yoking of the fire; verily [1] with it he yokes it. With the prosperous part of the sacrifice the gods went to the world of heaven, with the unsuccessful part they overcame the Asuras. 'Whatever, O Agni, in this sacrifice of mine may be spoiled', he says; verily with the prosperous part of the sacrifice the sacrificer goes to the world of heaven, with the unsuccessful part he overcomes the foes. With these Vyahrtis he should set down the Agnihotra. The Agnihotra is the beginning of the sacrifice, these Vyahrtis are the Brahman; verily at the beginning of the sacrifice he makes the Brahman [2]. When the year is completed he should thus with these (Vyahrtis) perform the setting down; verily with the Brahman he surrounds the year on both sides. He who is undertaking the new and full moon and the four monthly offerings should set in place the oblations with these Vyahrtis.