成唯識論述記 9.55

9.55

述曰：相違之法不相應故，如無慚與慚不得俱起，癡、無癡等例亦應然。若言有漏皆是不善，無癡與癡非謂相應，癡相輕微，名無癡者。

The Commentary states: Because contradictory phenomena cannot be associated, just as shamelessness (ahrīkatā) and shame (hrī) cannot arise together, the same should also apply by analogy to delusion and non-delusion, etc. If it is said that all defiled states are unwholesome, and it is not meant that non-delusion and delusion are associated, but that the mark of delusion is subtle and slight and hence called 'non-delusion'—