成唯識論演祕 2.330

2.330

釋曰：此釋論者明上二界成、不成就，夫生上地必伏下惑，故上對下名成、不成，種在名成，其生得善不起異界，故皆當地名之為成。

Explanation: This commentator clarifies the possession and non-possession in the two higher realms. As a rule, being born in a higher stage necessarily suppresses lower defilements; therefore, contrasting the higher with the lower is called possession and non-possession—having seeds present is called possession. Because its innately acquired good does not arise in a different realm, it is called possessed only in its own stage.