三彌勒經疏 1.157

1.157

經曰「阿難當知」以下，第二地土廣美。十萬由旬者，《成佛經》云「是時閻浮提地長十千由旬、廣八千由旬」，《金光明經》第六云「閻浮提地縱廣七千由旬」者，今云彌勒初出時，四海水多減而地多增，故云十萬由旬。後漸久遠時，海水還增，地狹短故，十千及七千不違。若有違文，准此可解也。各據一方者，海水各退縮一方故。諸山消滅及平正如鏡者，約理實言其時亦有山石等，而對今故無耳。若不爾，違下文云「大迦葉住此山」故。

From where the sūtra states "Ānanda, you should know..." onward is the second, the vastness and beauty of the land. Regarding "a hundred thousand yojanas": the *Attainment of Buddhahood Sūtra* states, "At that time the land of Jambudvīpa will be ten thousand yojanas in length and eight thousand yojanas in width"; the sixth fascicle of the *Suvarṇaprabhāsa Sūtra* states, "The land of Jambudvīpa is seven thousand yojanas in length and breadth." Now it is said that when Maitreya first appears, the waters of the four seas will decrease greatly and the land will increase greatly, hence it says "a hundred thousand yojanas." Later, after a long time, the sea waters will increase again and the land will become narrow and short, so [the figures of] ten thousand and seven thousand do not contradict this. If there are conflicting texts, they can be understood according to this. "Each occupying one direction": because the waters of the sea each recede to one direction. Regarding "the various mountains melting away and being flat and level like a mirror": speaking in terms of factual reality, at that time there will still be mountains and rocks, but in comparison to the present, they are considered nonexistent. If this were not so, it would contradict the text below stating that "Mahākāśyapa dwells on this mountain."