成唯識論述記 4.274

4.274

述曰：因果不無可信此識，勸清辨等以生信也。此中可說三性有無，略述《掌珍》清辨本意，分二見之是非，定雙情之邪正。我真諦中亦非法無，但不可說為因為果，言語道斷故；俗諦之中依他、圓成有故；遍計所執無故。

The Commentary states: Because causes and effects are not non-existent, one can have faith in this consciousness; this exhorts Bhavya and others to generate faith. Here, one may speak of the existence and non-existence of the three natures, briefly summarizing the original intent of Bhavya in the *Karatalaratna*, distinguishing right from wrong in the two views, and determining the erroneous and correct in both dispositions. In our ultimate truth, phenomena are likewise not non-existent; they simply cannot be spoken of as causes or fruits, because the path of speech is cut off; while in conventional truth, the dependent and the consummate exist, and the conceptually imagined is non-existent.