維摩義記 4.19

4.19

問曰：言說示識有何差異而別說無？答云：口陳文字謂之為言，以言闡法方名為說。亦可依法施語為言，以言闡法號之為說，顯法據人曰之為示，教人解法說以為識。隨俗有是，真中悉無，說曰無言乃至無識。

Question: What is the difference between speech (言), exposition (說), indication (示), and cognition (識), that they are individually stated to be absent? Answer: Stating characters with the mouth is called speech (言); elucidating the Dharma through speech is only then called exposition (說). Alternatively, utterable words that accord with the Dharma are speech (言); elucidating the Dharma through speech is called exposition (說); revealing the Dharma with reference to a person is called indication (示); and causing a person to understand the Dharma is spoken of as cognition (識). These exist in accordance with the conventional, but in the ultimate all are absent, so it says "there is no speech" down to "no cognition."