成唯識論述記 6.328

6.328

述曰：釋轉依業。有漏者伏，無漏者除一切能障定法，此或煩惱，或是受數，但能障定即是所除。又今說此但是惛沈，令所依身轉去麁重得安隱故。

The Commentary states: This explains the function of the transformation of the basis. The contaminated subdues, and the uncontaminated eliminates, all dharmas capable of obstructing concentration. These may be afflictions or feelings; whatever can obstruct concentration is what is eliminated. Furthermore, what is spoken of here is solely torpor, causing the physical basis to transform away from heaviness and attain ease.