成唯識論述記 9.434

9.434

述曰：餘三無記勢力薄弱不能覆所知，不障菩提故。若異熟生勢力強厚，通作意生計度所起，能覆所知障菩提故。從異熟起名異熟生，非業果也。雖與不善、有覆俱，不障二乘，但名無覆。此名無覆，望何人說？

The Commentary states: Because the power of the remaining three indeterminate [types] is weak, they cannot conceal the knowable and do not obstruct bodhi. Maturation-born, on the other hand, has strong and thick power, arising universally through attention and conceptualization, and can conceal the knowable and obstruct bodhi. Because it arises from maturation, it is called maturation-born; it is not the fruit of karma. Although it coexists with the unwholesome and the veiled, it does not obstruct the two vehicles, so it is merely called unveiled. When this is called unveiled, in view of what person is this said?