成唯識論述記 5.311

5.311

述曰：散亂若別有體、無體，令心馳流外境上轉，緣外方起。此緣內審，故無散亂。此師意存別有體也。下論說言，若別境中定為體者，是假不遍，餘者說遍。然今此師設別有體，以緣外起或間斷故，不遍一切染，此識中無。一、恒故；二、內執故；三、一類境生故，不外馳流，故無散亂。

The Commentary states: Whether distraction has a distinct substance or lacks substance, it causes citta to wander and turn toward external objects, arising only when taking external conditions. This consciousness examines internally, so it lacks distraction. This master's intention is that it has a distinct substance. The treatise below states that if it takes concentration among the particular objects as its substance, it is nominal and not omnipresent; the others say it is omnipresent. But now, even if this master posits that it has a distinct substance, because it arises taking external conditions or is discontinuous, it is not omnipresent in all defilements and is absent in this consciousness. First, it is constant; second, it grasps internally; third, it arises from a uniform object; thus it does not wander externally, and so it lacks distraction.