瑜伽論記 8.471

8.471

次解安樂相，略出五樂體性者，一者、因樂，基云：以三法為體，謂順樂果業及根塵二法能生順樂受觸者，此三是因果體即通五蘊性，以通取順樂果業故，相應若有皆因樂體通五蘊為體。

Next, explaining the characteristics of bliss, briefly setting forth the entities of the five blisses. The first is causal bliss. Ji says: "It takes three dharmas as its entity, namely karma that accords with pleasant fruit, and the two dharmas of faculties and objects capable of producing contact that accords with pleasant feeling. Since these three are causal entities, their nature extends through the five aggregates. Because it comprehensively takes karma that accords with pleasant fruit, any associated states, if present, are all causal bliss entities, taking the five aggregates as their entity."