大般涅槃經義記 2.197

2.197

第二對中迦葉先難，就佛所釋三句之中偏難後句。難辭有三：一就熱滅為難。「若煩惱火滅」明佛因亡，斯乃名彼即鐵之熱以之為火，非鐵外火，約喻名法名煩惱火。「如來亦滅」明佛果滅，「是故如來無常住處」結破佛常。二「迸鐵」下，就赤滅為難。先舉前喻，「如赤色滅」喻佛現起，煩惱因滅，赤色喻於煩惱之相。「莫知所至」喻佛報滅。下約顯法，「如來煩惱亦復如是」合赤色滅，「滅無所至」還合向前莫知所至。三「又如鐵」下，雙就熱赤二滅設難。「又如彼鐵熱與赤色滅已無有」，舉喻類法；「如來亦」下辯法同喻。「如來亦爾，滅已無常」合前赤滅，煩惱火滅便入涅槃。「即是無常」合前熱滅。

In the second exchange, Kāśyapa raises objections first, specifically raising objections against the last of the three lines explained by the Buddha. The objections comprise three points: First, he raises an objection in terms of the extinction of heat. 'If the fire of afflictions is extinguished' clarifies the destruction of the Buddha's cause; here, taking that heat intrinsic to the iron as fire—not the fire outside the iron—and naming the Dharma in accordance with the metaphor, it is called the fire of afflictions. 'The Tathāgata is also extinguished' clarifies the destruction of the Buddha's fruit. 'Therefore the Tathāgata has no permanently abiding place' concludes by refuting the Buddha's permanence. Second, from 'the hammered iron...' onward, he raises an objection in terms of the extinction of the red colour. First, he cites the previous metaphor: 'just as the red colour is extinguished' illustrates that the Buddha's manifest arising and the causal afflictions are extinguished, the red colour illustrating the characteristics of afflictions. 'None knows where it goes' illustrates that the Buddha's reward is extinguished. Below, he indicates the Dharma with reference [to the metaphor]: 'the Tathāgata's afflictions are likewise thus' matches the extinction of the red colour; 'extinguishing without a destination' matches again the preceding 'none knows where it goes.' Third, from 'further, like iron...' onward, he sets up an objection in terms of the extinction of both heat and red colour together. 'Further, just as the heat and red colour of that iron, once extinguished, no longer exist' cites the metaphor to assimilate the Dharma to it; from 'the Tathāgata is also...' onward, he explains that the Dharma is identical to the metaphor. 'The Tathāgata is likewise thus: once extinguished, he is impermanent' matches the previous extinction of red; when the fire of afflictions is extinguished, he then enters nirvāṇa. 'Is itself impermanent' matches the previous extinction of heat.