大般涅槃經疏 9.8

9.8

次「便作是言」下，因見立誓：我寧抱是熾然火聚終不邪見，若有若無乃至非有非無亦不邪說；十二部經佛僧三寶，抱火燒身誓不邪見，利刀割舌誓不邪說。若聞他說亦不信受，明自正見不為邪動。於此說者復生憐憫，明其自誓不為邪行之所滅沒。比丘正見及以正說尚復如此，況復諸佛。

Next, from 'he then makes this statement' onwards, based on seeing he establishes a vow: 'I would rather embrace this blazing mass of fire than ever hold wrong views; whether existence or non-existence, up to neither existence nor non-existence, I will also not teach falsely; regarding the twelvefold scriptures, the Buddha, the Saṃgha, and the Three Jewels, even embracing fire to burn my body I vow never to hold wrong views, and having my tongue cut with a sharp blade I vow never to speak falsely. If I hear others speak [so], I will also not believe or accept it,' making clear that his own right view is not shaken by the erroneous. 'Toward those who speak this, he also gives rise to pity,' making clear that his own vow is not submerged by wrong practices. If a monk's right view and right speech are like this, how much more so those of the Buddhas!