俱舍論疏 4.132

4.132

論「應知睡眠至如例應知」，此述睡眠遍前一切心品中故，皆悉無遮。睡眠無夢，性唯無記；據有夢說，故通三性。即不定中總有四例：一貪、瞋、慢、疑唯自力起；二惡作善及不共俱起通二、不善自力、善即共起。三睡眠有時亦容與一切心品俱起。四尋、伺定與欲界一切心品俱起。

The Śāstra says: "It should be known that sleep […] should be known according to the rule." This explains that sleep pervades all the aforementioned mental categories, and so is unobstructed in all cases. Dreamless sleep is exclusively indeterminate by nature; but based on sleep with dreams, it extends to all three natures. Thus among the unfixed, there are altogether four rules: first, greed, hatred, pride, and doubt arise solely by their own strength; second, wholesome regret and regret co-arising with the unshared extend to two—the unwholesome arises by its own strength, while the wholesome arises conjointly; third, sleep sometimes also has the capacity to arise co-presently with all mental categories; fourth, vitarka and vicāra definitely arise co-presently with all mental categories of the desire realm.