成唯識論述記 6.380

6.380

述曰：此是無瞋一分，於境不憎，方欣彼故。此性非欲，欲俱法也。然八十六解三不善根眾名中，不說瞋名欣，貪亦名欣。今若翻彼名，不欣應無貪一分。貪是著義，染貪名欣；無貪厭義，無瞋名欣，各約一義，亦不相違。

The Commentary states: This is a part of non-ill-will, because only when one does not hate an object does one rejoice in it. Its nature is not desire; it is a factor conjoined with desire. However, the eighty-sixth fascicle [of the Yogācārabhūmi-śāstra], in explaining the various names of the three unwholesome roots, does not call ill-will rejoicing, while greed is also called rejoicing. Now, if one were to reverse those names, non-rejoicing would be a part of non-greed. Greed has the sense of attachment, so defiled greed is called rejoicing; non-greed has the sense of revulsion, while non-ill-will is called rejoicing. Each is stated according to one meaning, and they do not contradict each other.