大般涅槃經義記 4.321

4.321

第七明佛諸力具中，初明如來身力具足，「世界成」下德力具足，「今者何故右脇臥」下總以結呵。

In the seventh, explaining that the Buddha is endowed with all powers, it first explains that the Tathāgata's bodily strength is fully endowed; from "When the world forms" down, his power of virtue is fully endowed; from "Why now lie on your right side?" down, it concludes with a general scolding.