金剛經纂要刊定記 7.128

7.128

不可等者。此明離於說相，非全不說。前云無法可說。《淨名》無說無示，是名說法，故魏經云如不演說。

"Inconceivable, etc.": this clarifies being free from the mark of speaking, not that one does not speak at all. Above it was said: "there is no Dharma to be spoken." The Vimalakīrtinirdeśa states that neither preaching nor showing is called expounding the Dharma; thus the Wei translation says, "just as if not expounding."