大般涅槃經義記 2.84

2.84

自下第三問其證實成果之行，亦名證實起用之行，於中明佛身、口、意行。「云何共聖至迦隣提」問佛意業。名佛為聖，佛所成行名為聖行。諸佛如來得大涅槃，不捨世間，不捨世間而入涅槃，無常共常、常共無常，乃至苦樂、我無我等，類亦同爾，故名為共。此相云何？下以喻顯。如娑羅鳥及迦隣提遊止共俱，不相捨離。日、月及星，此三喻佛身、口二業，下皆別答。偈初至此大段第一問其教聖趣菩提行。

From here on, the third [section] asks about the practice of realizing the real and accomplishing the fruit, also called the practice of realizing the real and giving rise to functioning; within this, the Buddha's bodily, verbal, and mental practices are explained. "How, together with the noble ones, as far as the kalaviṅka..." asks about the Buddha's mental karma. The Buddha is called "noble," and the practice he accomplishes is called "noble practice." The Buddhas, the Tathāgatas, attain great nirvāṇa without abandoning the world; without abandoning the world, they enter nirvāṇa: impermanence together with permanence, permanence together with impermanence, and so forth up to suffering and bliss, self and non-self, which are likewise analogous; hence it is called "together with." What is this characteristic like? Below, it is shown through similes. It is like the sārasa bird and the kalaviṅka, which roam and abide together, never parting from each other. The sun, moon, and stars—these three are similes for the Buddha's bodily and verbal karmas, all of which are answered individually below. From the beginning of the verses up to here is the first major section, asking about the practice of teaching the noble to advance toward bodhi.