YV 2.7b

Man is of a hundred (years of) life and of a hundred powers; verily in life and power do they find support. When a hundred make a thousand, then is one time to stop. Yonder world is measured by a thousand; verily they conquer yonder world. If one of them perish or they be oppressed, then is one time to stop, for that is a suitable opportunity. Kusurubinda Auddalaki desired, 'May I be rich in cattle.' He grasped this (rite) of seven nights, and sacrificed with it. Then indeed did be win all the domestic animals. He, who knowing thus sacrifices with (the rite) of seven nights, wins all domestic animals. (The rite) is of seven nights; the domesticated animals are seven, the wild seven, the metres seven, for winning both. There is an Agnistoma with the Trivrt (Stoma); verily he wins brilliance [1]. There is a Pañcadaça (Stoma); verily he wins power. There is a Saptadaça (Stoma), for the winning of food; verily also by it he is propagated. There is an Ekavinça (Stoma), for support; verily he places radiance in himself. There is a Trinava (Stoma), for conquest. There is an Agnistoma with the Pañcadaça (Stoma) to obtain Prajapati; it has (the characteristics of) the Mahavrata, to win food. There is a Viçvajit Atiratra with all the Prsthas, to conquer all. If they were in the preceding days to perform the Prsthas in the obvious way, and similarly in the Viçvajit [2], the last day would be as when one sits down to a cow which has already been milked; it would not be good enough for even a single night (rite). In the preceding days they perform the Brhat and the Rathantara. The Rathantara is this (earth), the Brhat yonder (sky); verily they depart not from them; verily also in them do they find support. In that they perform the Prsthas in the Viçvajit in the obvious manner, it is as when one milks a cow which is ready to give. Brhaspati desired, 'May I be resplendent.' He saw this rite of eight nights, he grasped it, and sacrificed with it.