大般涅槃經義記 6.366

6.366

就第四段重自慶中，先慶所得，後慶得為諸佛弟子。前中初先列己所得，謂得出世淨天之身，長命常身，「令諸眾生發菩提」下辨其所得。菩薩化他即是自受，是故令生發菩提心，名得天身長命常身。

In the fourth passage, rejoicing in himself once more, he first rejoices in what he has obtained, and afterwards rejoices in becoming a disciple of the Buddhas. In the former, he first lists what he has obtained, namely obtaining the supramundane pure divine body, the long-lived permanent body; from "causing sentient beings to give rise to bodhi..." downward, he discerns what he has obtained. A bodhisattva's transforming others is precisely his own reception; therefore, causing sentient beings to give rise to the bodhi-mind is called obtaining the divine body and the long-lived permanent body.