俱舍論記 3.23

3.23

「三無漏根至能般涅槃故」者，釋第三頌，解三無漏根。初引第二，故於已知有增上用。第二引第三，故於具知有增上用。第三能證涅槃，故於涅槃有增上用。心無煩惱方得涅槃，非心未解脫煩惱能般涅槃故。言「後後」者，第二根是初根後道，第三根是第二根後道，故言後後道。第三根於涅槃有增上。

"The three undefiled faculties... [up to] because they can achieve parinirvāṇa": this explains the third verse, elucidating the three undefiled faculties. The first induces the second; therefore, it has sovereign efficacy regarding [the state of] having known. The second induces the third; therefore, it has sovereign efficacy regarding [the state of] full knowledge. The third can realize nirvāṇa; therefore, it has sovereign efficacy regarding nirvāṇa. Only when the mind is free of defilements does one attain nirvāṇa; for it is not when the mind is not yet liberated from defilements that one can achieve parinirvāṇa. As for "successive [paths]," the second faculty is the path subsequent to the first faculty, and the third faculty is the path subsequent to the second faculty; hence they are called successive paths. The third faculty has sovereignty over nirvāṇa.