瑜伽師地論略纂 4.81

4.81

Regarding "faultless, faulty, to be cultivated, not to be cultivated": these loosely explain causes, the entities of good and evil. Regarding "black, white, mixed": these explain the entities of effects. Because effects have both black and white divisions, they are called "having divisions." Among these nineteen, some apply to both innate and conceptually differentiated [forms], because time periods, matters, karma, effects, and so forth apply to both categories.