三彌勒經疏 1.124

1.124

問：云何知一成壞劫為賢劫量耶？答：《菩薩處胎經》云「如六天王等滿四天下，不如一大梵天功德，乃至壽命過賢劫，其命乃終。」解云：梵王壽命既六十劫，而言過賢劫，云何得言多成壞劫？又《智度論》云「前九十劫三佛出，後一劫有千佛出。」解云：後一劫者第九十一劫，劫初中四佛出，如前所引。言一劫者，成壞為一劫故。

Question: How is it known that one kalpa of formation and destruction constitutes the span of the Bhadrakalpa? Answer: The *Bodhisattvagarbhasūtra* says: "Even if the six deva kings and others filled the four continents, it would not equal the merit of a Mahābrahmā deva, up to his lifespan exceeding the Bhadrakalpa, after which his life finally ends." Explaining this: since the lifespan of a Brahmā king is sixty kalpas, and it is said to exceed the Bhadrakalpa, how could one speak of many kalpas of formation and destruction? Furthermore, the *Mahāprajñāpāramitopadeśa* says: "In the previous ninety kalpas three Buddhas appeared, and in the latter one kalpa one thousand Buddhas appear." Explaining this: the "latter one kalpa" is the ninety-first kalpa, in the beginning of which four Buddhas appeared, as cited above. It is called "one kalpa" because a formation and destruction constitutes one kalpa.