大般涅槃經集解 19.44

19.44

案道生曰：雖復受身萬端，而佛性常存。若能計此得者，實為善也。僧亮曰：佛從性起，性理不變，因實果真，所以不壞。

Daosheng states: Though one receives bodies of myriad varieties, the buddhadhātu remains eternal. If one can grasp it and attain it in this way, it is truly wholesome. Sengliang states: The Buddha arises from the nature; the principle of the nature is unchanging; because the cause is real, the fruit is genuine, and so it cannot be destroyed.