俱舍論頌疏論本 24.9

24.9

釋曰：初兩句明一間，下兩句明向果。謂一來者進斷餘惑，若三緣具，轉名一間：一由斷惑，斷欲修惑七八品故；二由成根，得能治彼七八品惑無漏根故；三由受生，更受欲有餘一生故。頌中但說初、後二緣，不說成根，義如前釋。問：「如何第九一品惑障得不還果？」答：「斷第九品越欲界故。前說三時業為障中，欲界地業障不還果，應知煩惱亦與業同，謂得不還，越彼第九品惑等流果及異熟地故，故一品惑障得不還果。」

Explanation: The first two lines clarify the ekavīcika ('one interval left'); the lower two lines clarify the candidate and fruit. A once-returner who progresses to abandon the remaining defilements, if three conditions are fulfilled, changes designation to become an ekavīcika: First, due to abandonment of defilement, because they abandon seven or eight categories of the desire realm's defilements of cultivation. Second, due to perfection of faculties, because they obtain the undefiled faculties capable of counteracting those seven or eight categories of defilement. Third, due to taking rebirth, because they take only one remaining rebirth in desire-realm existence. The verse only states the first and last two conditions and does not state the perfection of faculties; the meaning is as explained before. Question: 'Why does the single ninth category of defilement obstruct the attainment of the fruit of non-returner?' Answer: 'Because abandoning the ninth category transcends the desire realm. In the previous explanation of karma in the three times serving as obstructions, karma of the desire-realm level obstructs the fruit of non-returner; it should be known that defilements are also the same as karma: attaining non-return transcends the out-flowing result of that ninth category of defilement and its level of maturation; therefore, this single category of defilement obstructs the attainment of the fruit of non-returner.'