瑜伽論記 7.252

7.252

律儀斷，斷斷等者，景云：制惡名律儀，初修有漏精進制彼已生惡法令不牽後，名律儀斷。後修無漏精進，斷已生惡所熏種子，亦名律儀斷。其未生惡法有當生義，為斷當生現行，故斷彼種故言為斷，故云斷斷。

Regarding “abandonment by restraint,” “abandonment by cutting off,” and so forth, Jing says: Restraining evil is called “restraint.” Initially cultivating tainted striving to restrain those already arisen evil phenomena so that they do not drag forward [further consequences] is called “abandonment by restraint.” Subsequently cultivating taintless striving to cut off the seeds perfumed by already arisen evil is also called “abandonment by restraint.” Those unarisen evil phenomena have the character of arising in the future; in order to cut off their future actual activity, one cuts off their seeds, and therefore it is said to be “for the sake of cutting off”; hence it is called “abandonment by cutting off.”