妙法蓮華經玄贊 7.160

7.160

贊曰：此明別知。有四：一三慧所緣，二三慧行相，三三慧體，四以何行得何果、以何教得何理。此四類法皆佛所知，但說藥草，故唯說此不說知餘。

The commentary says: This explains particular knowledge. There are four points: first, the objects of the three wisdoms; second, the active aspects of the three wisdoms; third, the substance of the three wisdoms; fourth, by what practice what fruit is attained, and by what teaching what principle is attained. These four kinds of dharmas are all known by the Buddha. But because he is only expounding on medicinal herbs, he speaks solely of this and does not speak of knowing the rest.