金剛經纂要刊定記 4.275

4.275

勝義空者。此門是絕相無為，不可言福與不福。福既不有，無以言多。

[On] "paramārtha emptiness": this approach is asaṃskṛta devoid of marks; one cannot speak of merit or non-merit. Since merit does not exist, there is no way to speak of "much."