YV 5.7e

Having made up the months with the half-months, they leave out a day, for they behold the months by the half-months. Having made up the months by the new moon night, they leave out a day, for they behold the months by the new moon night. Having made up the months by the full moon night, they leave out a day, for they behold the month by the full moon night. He who pours (liquid) into a full (vessel) wastes the liquid; he who pours out from a full (vessel) [1] places breath in it. In that, having made up the months with the full moon night, they leave out a day, they place breath in the year, and the performers of the Sattra breathe along it. If they did not leave out a day, then the year would fall asunder, as falls asunder a skin bag tied tight, and they would be ruined. In that, having made up the months with the full moon night, they leave out a day, they place out-breathing in the year, and the performers of the Sattra breathe out along it [2], and are not ruined. At the full moon (the Soma) of the gods is pressed. In that, having made up the months with the full moon night, they leave out a day, with the sacrifice to the gods they go to another sacrifice. They cleave asunder the sacrifice, in that (after performing it) as a series of six-day rites they leave out a day. They offer an animal for Prajapati. Prajapati is all the gods; verily with the gods do they offer the sacrifice. They leave the pressing [3], who leave out the day. The Samnayya is the fourth pressing. Because there is the Samnayya, they do not leave the pressing. They partake of it after uttering the invocation, for they have this then as their Soma drink. The deities who share in the pressings of those who leave out the day go to their places; they offer the sacrificial cakes in each of the pressings; verily they win the deities who share in the pressing from their several places.