大般涅槃經義記 6.125

6.125

自下迦葉聞前所說荷恩讚嘆，經家先舉，下列嘆辭。辭有四偈：前二對上謗者得罪，嘆佛能救；後二對上如來辯說知、見、覺法令菩薩知，嘆佛能益。前兩偈中，初之半偈嘆佛有慈，後一偈半嘆佛有悲。善拔眾毒，故稱大醫，明未治者如來能治。後之一偈明已治者佛令不起，於中前半舉劣顯勝，後之半偈辯勝過劣。後兩偈中，初之一偈約喻顯法，後之一偈當法正嘆。

From here below, Kāśyapa, having heard what was previously taught, feels grateful and offers praise; the sūtra compiler first introduces this, and next lists the words of praise. The words comprise four verses: The first two correspond to "those who slander incur transgression" above, praising the Buddha's ability to save; the latter two correspond to the Tathāgata discriminating the dharmas of knowing, seeing, and perceiving to enable bodhisattvas to know them, praising the Buddha's ability to benefit. Among the first two verses, the first half-verse praises the Buddha's possession of loving-kindness, and the latter one and a half verses praise the Buddha's possession of compassion. Being skilled at extracting all poisons, he is therefore called the Great Physician, explaining that regarding those who are not yet cured, the Tathāgata can cure them. The latter one verse explains that regarding those already cured, the Buddha causes [the disease] not to arise again; therein, the first half raises the inferior to reveal the superior, and the latter half-verse discriminates how the superior surpasses the inferior. Among the latter two verses, the first verse relies on an analogy to reveal the dharma, and the latter verse directly offers praise in terms of the dharma itself.