成唯識論演祕 5.694

5.694

此難意云：言思惟者是本經頌，論家釋云：何故唯歎淨覺？淨覺是言說因故，覺名覺觀，是口言行，准其論文亦得為證，何故不引？

The intention of this objection is: The word "thought" is in the verse of the root sūtra; the author of the commentary explains: Why does it only praise "pure awareness"? Because pure awareness is the cause of speech; awareness is called vitarka and vicāra, which are verbal activities; according to the text of the treatise, this can also serve as proof, so why is it not cited?