注大乘入楞伽經 7.169

7.169

This means that if someone is not skilled at expounding the Dharma and falls into letters and verbal teachings, it is called false and deceptive speech. In reality, the Tathāgatas of the three times and all the bodhisattvas have never once spoken or answered with a single character. This is because the nature and characteristics of phenomena are dissociated [from speech], yet it is not that they do not accord with the real meaning, as they provisionally make discriminating explanations to reveal it.