大般涅槃經義記 6.214

6.214

問有四句：一舉昔所聞，「我親從佛受如是義，迦葉佛法七日滅盡」；二審定如來「迦葉如來有是經不」；三就有設難，「若其有者，云何言滅」；四就無設難，「若其無者，云何說言《大涅槃經》諸佛祕藏」。

The question consists of four clauses: first, adducing what was heard in the past: "I personally received such an explanation from the Buddha, that the Dharma of Kāśyapa Buddha was completely extinguished in seven days"; second, questioning the Tathāgata to ascertain: "Did Kāśyapa Tathāgata have this sūtra or not?"; third, posing a dilemma based on its existence: "If he had it, why is it said to be extinguished?"; fourth, posing a dilemma based on its non-existence: "If he did not have it, why is it said that the Mahāparinirvāṇa Sūtra is the secret treasury of the buddhas?"