維摩義記 3.19

3.19

問曰：淨好何須教捨？法門有三：一是對治修捨之門，有惡斯捨、有善皆修；二破相門，若好若惡一切悉遣；三立相門，淨穢斯起。今就第二，故染與淨悉教捨離。

Question: Why must one be taught to abandon what is pure and good? There are three dharma gates: the first is the gate of cultivating and abandoning as an antidote, where whatever is bad is abandoned and whatever is good is cultivated; the second is the gate of refuting characteristics, where whether good or bad, all alike are eliminated; the third is the gate of establishing characteristics, where both pure and defiled arise. Now, it is according to the second [gate], and therefore he teaches the abandonment of both the defiled and the pure.