俱舍論疏 6.109

6.109

論「如是廣說至更無勝故」，苦法智忍已後諸無漏也。其無生智唯與等為因，更無勝故，異乘聖道無因義故。盡智已下皆與等、勝為因。《正理論》云「由是道諦雖地不同，展轉為因，同種類故。然非一切為一切因。與誰為因？謂等、勝果。加行生故，非為劣因。初定聖道有依初定，乃至有依無所有處，二定等道應知亦爾，於依自、上有，於依下地無。謂依初定初定聖道，與依九定九地聖道為同類因。即此唯用依初定道為同類因，不用依上聖道為因，以性劣故。依第二定初定聖道，除依初定，與依餘定九地聖道為同類因。即此唯用依初、二定九地聖道為同類因，非依上地。乃至若依無所有處初定聖道，唯與依此無所有處九地聖道為同類因，即此通用依九地定九地聖道為同類因。如依九定初定聖道，餘定聖道依於九地，隨其所應當廣思擇。」

The treatise says, "Expounding this at length [...] because there is nothing superior," referring to all the undefiled [states] from the dharma-knowledge-tolerance regarding suffering onwards. Knowledge of non-arising is a cause only for the equal, because there is nothing superior, and because the holy path of another vehicle cannot have it as a cause. Everything from the knowledge of exhaustion downwards is a cause for the equal and superior. The *Nyāyānusāra* says: "Because of this, although the levels [of the holy path] differ, the truth of the path serves mutually as cause because they are of the same kind. However, not all are causes for all. For what are they causes? Namely, for equal and superior fruits. Because they are born of application (prayoga), they are not causes for the inferior. The holy path of the first dhyāna may rely on the first dhyāna, and so on up to relying on the sphere of nothingness; the path of the second dhyāna and so on should also be understood in this way: [the causal relationship] exists regarding reliance on one's own or superior [levels], but does not exist regarding reliance on inferior levels. That is to say, the holy path of the first dhyāna relying on the first dhyāna is an equal-status cause (sabhāga-hetu) for the holy paths of the nine levels relying on the nine dhyānas. This [path itself] takes only the path relying on the first dhyāna as an equal-status cause; it does not take holy paths relying on superior [levels] as causes, because their nature is superior [while its own is inferior]. The holy path of the first dhyāna relying on the second dhyāna—excluding that relying on the first dhyāna—is an equal-status cause for the holy paths of the nine levels relying on the remaining dhyānas. This [path itself] takes only the holy paths of the nine levels relying on the first and second dhyānas as equal-status causes, not those relying on superior levels. And so on up to: if the holy path of the first dhyāna relies on the sphere of nothingness, it is an equal-status cause only for the holy paths of the nine levels relying on this sphere of nothingness, and this [path itself] universally takes the holy paths of the nine levels relying on the dhyānas of the nine levels as equal-status causes. As with the holy path of the first dhyāna relying on the nine dhyānas, the holy paths of the remaining dhyānas relying on the nine levels should be considered extensively according to their appropriate application."