三彌勒經疏 1.37

1.37

第三發心先後者，問：釋迦與彌勒誰先發心耶？答：彌勒先，釋迦後。是故《佛藏經》云「彌勒發心四十劫已，釋迦乃發心。」又《彌勒菩薩所問本願經》云「彌勒發意先我前四十二劫，我其後發道意。於此賢劫，以大精進，超越九劫成正覺。」又《佛本行經》言「昔有如來號曰善思，彌勒菩薩於彼佛所最初發心。彌勒菩薩在於我前四十餘劫發菩提心，然後我發道心。昔有佛名示海幢如來，我於彼佛國作轉輪王，名曰牢山，初發心。」是等諸經皆彌勒先發心釋迦後發心。

Third, regarding the priority and posteriority of generating the mind: Question: Between Śākyamuni and Maitreya, who generated the mind first? Answer: Maitreya was first, and Śākyamuni was later. Therefore, the Fozang jing says: 'Forty kalpas after Maitreya generated the mind, Śākyamuni then generated the mind.' Also, the Mile pusa suowen benyuan jing says: 'Maitreya generated the resolution forty-two kalpas before me, and I generated the resolution for the path thereafter. In this Bhadrakalpa, by great energetic striving, I surpassed [him by] nine kalpas to attain right awakening.' Furthermore, the Fo benxing jing says: 'In the past there was a Tathāgata named Good Thought; the Bodhisattva Maitreya initially generated the mind in the presence of that Buddha. The Bodhisattva Maitreya generated the bodhicitta more than forty kalpas before me, and after that I generated the mind for the path. In the past there was a Buddha named Revealing the Ocean Banner Tathāgata; in that Buddha's land I was a wheel-turning king named Firm Mountain and first generated the mind.' In all such sūtras, Maitreya generated the mind first and Śākyamuni generated the mind later.