成唯識論述記 1.48

1.48

二者，受樂。即是樂受，通有、無漏。有漏樂者，三界所繫，調暢身心，皆名為樂，非唯遍行受數中樂。無漏樂者，通學、無學，是樂自性。

Second, experienced happiness. That is pleasant feeling itself, which encompasses both contaminated and uncontaminated [states]. Contaminated happiness, which is bound to the three realms and harmonizes body and mind, is universally called happiness, not merely the pleasant feeling among the omnipresent mental factors. Uncontaminated happiness encompasses those in training and those beyond training, and is the intrinsic nature of happiness.