俱舍論記 15.46

15.46

「二者由受至常施食等」者，二者由受。謂自誓言：若未禮佛不先食等。或作誓限，於齋日等常施食等。雖心微劣，由受力故無表續生。齋日謂六齋日。月半謂半月，即十五日及月盡日。月謂一月，年謂一年。又解：齋日謂六齋日，齋月謂三齋月，半月謂一月之中取半月也，年謂一年。此中由受且約善說，不善、處中略而不論，理亦應有。謂如有人於怨家所作是誓言：若不打罵不先食等。或作誓限，於某日等必須打罵。雖心微劣，由受力故，無表續生。

Regarding the passage "Second, due to undertaking... constantly giving food and so forth": second is due to undertaking. That is, vowing oneself: "If I have not yet paid homage to the Buddha, I will not eat first," and so forth. Or setting a temporal limit, such as constantly giving food on poṣadha days and so forth. Although the mind may be weak, due to the power of the undertaking, non-manifest karma continues to arise. "Poṣadha days" refers to the six poṣadha days. "Half-month" refers to the half-month, namely the fifteenth day and the final day of the month. "Month" refers to one month; "year" refers to one year. Another explanation says: poṣadha days refers to the six poṣadha days; poṣadha months refers to the three poṣadha months; half-month refers to taking half a month within a month; year refers to one year. Here, "due to undertaking" is explained provisionally with respect to the wholesome; the unwholesome intermediate is omitted and not discussed, but in principle it should also exist. That is, for example, if someone makes a vow regarding an enemy: "If I have not beaten or cursed them, I will not eat first," and so forth; or sets a temporal limit, such that on a certain day they must beat or curse them. Although the mind is weak, due to the power of the undertaking, non-manifest karma continues to arise.