大般涅槃經義記 2.89

2.89

次明起行，「云何菩薩得不壞眾」，問其自行。自行成就，同諸菩薩不可乖異，名不壞眾，故下文言「菩薩勤加精進，護法所得，眷屬不可破壞。」「云何為盲作眼目導」，問利他行。亦可此二同問利他，得不壞眾是攝人行，由勤護法，人皆樂從，故不可壞；為盲作導是開化行。下明得果，初言「云何示多頭」者，隨類異說。云何說者，增如月初，隨機漸說。此文顛倒而復不足。若正，應言云何說者增如初月；若具，應言云何說者增長眾生？如世父母教於初生十六月兒，准答應爾。小兒初生十六月時言語不正，父母為教，先同其言，後教正語；佛亦如是，先隨眾生說小乘法，後為說大，故今問之。

Next, the arising of practice is explained: "How does a bodhisattva attain an indestructible assembly?" asks about practice for oneself. When practice for oneself is perfected, being identical with the bodhisattvas and incapable of discord, it is called an "indestructible assembly"; hence the text below states, "Through the bodhisattva's diligent exertion, what is attained by protecting the Dharma is a retinue that cannot be destroyed." "How does one serve as eyes and a guide for the blind?" asks about practice that benefits others. Alternatively, these two questions both concern benefiting others: attaining an indestructible assembly is the practice of gathering people, where because of diligent protection of the Dharma everyone joyfully follows, hence they cannot be destroyed; serving as a guide for the blind is the practice of opening and transforming. Below, the attainment of the fruit is explained. First, the words "How does one manifest multiple heads?" refer to speaking differently in accordance with different kinds [of beings]. "How does one who speaks increase like the new moon?" means teaching gradually in accordance with faculties. This text is inverted and also incomplete. If corrected, it should read: "How does one who speaks increase like the crescent moon?"; if complete, it should read: "How does one who speaks nurture sentient beings, just as worldly parents teach an infant sixteen months old?"—judging by the answer, it should be so. When a small child is first born and sixteen months old, its speech is not correct; when parents teach it, they first imitate its speech and later teach correct words; the Buddha is also like this: he first teaches Hīnayāna Dharma in accordance with sentient beings, and later teaches the Mahāyāna for them; therefore it is now asked.