大般涅槃經義記 7.326

7.326

此六復次巧為善益，「譬如良醫善八術」下第八復次，明佛菩薩內心平等，先喻次合，「以是」下結。

These six repetitions skillfully bring about beneficial goodness. From 'Like a skilled physician proficient in the eight arts...' onward is the eighth repetition, clarifying that the inner mind of buddhas and bodhisattvas is impartial: first is the simile, next the application, and from 'For this reason...' onward concludes.