成唯識論演祕 3.604

3.604

答：對他為也。由自至生，他法至滅，對滅名果。自流至滅，他法至生，對生名因。

Answer: It does so in contrast to another. Due to oneself reaching arising while the other dharma reaches cessation, it is called fruit in contrast to cessation. As oneself flows on to cessation while the other dharma reaches arising, it is called cause in contrast to arising.