俱舍論記 15.53

15.53

「二由棄捨眾同分故」者，釋由命終。戒依同分增上力得，由命終故捨所依同分，能依戒亦捨。故《正理》云「二由命終。謂眾同分增上勢力得律儀故。」

Regarding the passage "Second, through relinquishing the generic similarity": this explains abandonment through the end of life. Morality is obtained through the predominant power of the generic similarity (nikāya-sabhāga); because life ends, the generic similarity that serves as the support is abandoned, and the morality supported by it is also abandoned. Thus the Nyāyānusāra states: "Second, through the end of life. That is, because restraint is obtained by the predominant power of the generic similarity."