肇論新疏 2.87

2.87

若云般若有知有見，但性空故經說清淨者，則與惑智不相殊畏。何者？夫三毒四倒皆亦性空，亦應清淨。據此而知不約性空，但約無知無見。惑智，即三毒等分別名智。如下云惑智之無。《起信》「六麁智相是惑」故。

If one says that prajñā possesses knowing and seeing, and the sūtra speaks of purity merely because of its nature being empty, then it would not differ from deluded wisdom. Why? The three poisons and four inversions are also all empty of own-nature and should also be pure. Knowing this, we see that it is not in terms of nature being empty, but merely in terms of being without knowing and without seeing. "Deluded wisdom" refers to the discriminations such as the three poisons being termed "wisdom." As stated below: "the non-existence of deluded wisdom." This is because the Awakening of Faith says: "The marks of wisdom among the six coarse [aspects] are delusion."