瑜伽師地論略纂 12.154

12.154

論云「是諸菩薩於諸法中起加行慧，為他說一切種法」者，何故八地已上名無加行，此地有起加行智之言？義曰：前七地中，於上解脫須勤加功行方乃趣得，名加行；於佛地中，欲為有情說法，任運而說，非加行。今此住見趣入上解脫故，無加行智任運如異熟增勝，然欲為有情說法時，不能如佛任運說，須作意起說，即無漏觀中起作說法，名起加行智，故不同前。

Regarding the treatise's statement, "These bodhisattvas arouse applied wisdom toward all dharmas to explain all kinds of dharmas for others": Why is the eighth bhūmi and above called devoid of effort, whereas this bhūmi has the words "arousing applied wisdom"? The meaning is: in the preceding seven bhūmis, one had to diligently exert effort toward higher liberation before one could attain it, which was called "effort"; in the Buddha bhūmi, when wishing to expound the Dharma for sentient beings, one speaks spontaneously, which is not effort. Now in this stage, because of seeing and entering into higher liberation, knowledge devoid of effort spontaneously increases in excellence like maturation; however, when wishing to preach the Dharma for sentient beings, one cannot preach spontaneously like a Buddha, but must apply attention to initiate preaching. That is, within the outflow-free contemplation one initiates and undertakes preaching the Dharma, which is called "arousing applied wisdom"; thus it is not the same as before.