金光明經文句記 5.194

5.194

初、明異相。果性者，緣了所剋智斷果也。境果者，緣了所轉境界，即陰等十種境也。果及果果者，果則別在智德；果果者則在斷德，智德之上又加斷德，故重言果。此之二二皆稱性者，悉以常住不改為義。境界不改者，修惡即性惡故也。

First, clarifying the different aspects. The 'nature of the fruit' is the fruit of wisdom and severance attained through the conditional and revealing [causes]. The 'realm fruit' is the realm transformed through the conditional and revealing, namely the ten realms of aggregates, etc. 'Fruit and fruit-fruit': 'fruit' applies specifically to the virtue of wisdom; 'fruit-fruit' applies to the virtue of severance—adding the virtue of severance on top of the virtue of wisdom, hence 'fruit' is repeated. That these two sets of two are both called 'nature' is in all cases because of the meaning of constantly abiding and unalterable. The realm's being unalterable is because cultivated evil is identical to inherent evil.