楞伽阿跋多羅寶經註解 1.556

1.556

既斥外道有無皆非正因，故又問云：「今正教得無妄想者，唯見不生相而已，與彼外道觀察不生妄想言無者何異耶？」

Having already refuted the tīrthikas' [views of] existence and nonexistence as not being proper causes, he therefore asks again: "Now, when the correct teaching attains freedom from vikalpa, seeing only the mark of non-arising, how does this differ from those tīrthikas who observe non-arising vikalpa to speak of nonexistence?"