俱舍論記 24.111

24.111

「由何地道至已離故」者，此即第三道離地通局。諸無漏道通依九地，謂四靜慮、未至、中間及三無色。若未至攝，能離九地；餘八地攝，隨其所應各能離自及上地染。初定中間能離自地及上七地，乃至無所有處能離自地及上有頂，不能離下，上道現前下已離故。諸有漏道一切唯能離次下地，非自地、非上地、非更下地。如依第二靜慮近分起世俗道，唯能離次下初靜慮染，自地煩惱所隨增故。不能離自地，勢力劣故不能離上，欲已離故不能離下。

[On the text,] "By the path of which stage [...] because they have already been detached": This is the third: the scope and restriction of the path's detachment across stages. All anāsrava paths are generally based on nine stages, namely: the four dhyānas, the unarrived (anāgamya), the intermediate (dhyānāntara), and the three formless realms. If subsumed under the unarrived, it can detach from nine stages; if subsumed under the other eight stages, as appropriate, each can detach from the defilements of its own and higher stages. The intermediate of the first dhyāna can detach from its own stage and the seven stages above it, up to the sphere of nothingness, which can detach from its own stage and the Peak of Existence above it; they cannot detach from lower ones, because when a higher path manifests, the lower has already been detached from. All sāsrava paths can only detach from the immediately lower stage, not its own stage, not a higher stage, and not a still lower stage. For example, when a conventional path is generated based on the threshold concentration of the second dhyāna, it can only detach from the defilements of the immediately lower first dhyāna, because it is increased in accordance by the defilements of its own stage. It cannot detach from its own stage, cannot detach from the higher because its power is inferior, and cannot detach from the lower because the desire realm has already been detached from.