大般涅槃經義記 2.46

2.46

「汝等當知先所修」下，第三大段對上初請，教其甄簡。於中初先正教取捨，遣其執心；「比丘白」下為之會通，遣其疑心。前中有二：一對上比丘嘆昔所修無常想勝，以理呵奪；二春時喻下對前比丘嘆昔所解無常苦空、無我法真，教其甄簡。初中，「當知先所修習無常苦想非真實」者，以理正奪；無我等想亦非真實，略不備舉。

From the line "You should know that what was formerly cultivated..." onward is the third major section, which answers the monks' initial request above by teaching them to distinguish and select. Within it, [the text] first correctly teaches acceptance and rejection, dispelling their attached minds; from "The monks addressed the Buddha..." onward, it reconciles [the teachings] for them, dispelling their doubtful minds. The former has two parts: first, addressing the monks' praise above of their former cultivation of the perception of impermanence as superior, it uses principle to reprimand and strip away [their view]; second, from the spring season analogy onward, addressing the former monks' praise of their past understanding of the dharmas of impermanence, suffering, emptiness, and non-self as true, it teaches them to distinguish and select. In the first part, "You should know that the cultivated perceptions of impermanence and suffering are not genuine" correctly strips [their view] away using principle; perceptions such as non-self are also not genuine, but they are omitted and not cited in full.