太子瑞應本起經 1.12

1.12

「菩薩於九十一劫，修道德，學佛意，通十地行，在一生補處。後生第四兜術天上，為諸天師，功成志就，神智無量。期運之至，當下作佛，託生天竺迦維羅衛國，父王名白淨，聰叡仁賢；夫人曰妙，節義溫良。迦維羅衛者，三千日月萬二千天地之中央也。佛之威神，至尊至重，不可生邊地，地為傾邪，故處其中。周化十方，往古諸佛興，皆出於此。

"Over ninety-one kalpas, the bodhisattva cultivated virtue, studied the mind of the buddhas, mastered the practices of the ten stages, and reached the position of one bound to one more birth. Later he was born in the fourth heaven, Tuṣita, as a teacher to all the devas, his merit accomplished, his aspiration fulfilled, his spiritual wisdom boundless. When the destined time arrived for him to descend and become a buddha, he entrusted his birth to the kingdom of Kapilavastu in India. His royal father was named Śuddhodana, intelligent, discerning, benevolent, and virtuous; his consort was named Māyā, chaste, righteous, gentle, and good. Kapilavastu is the center of the three thousand suns and moons and twelve thousand heavens and earths. The spiritual majesty of a buddha is supremely venerable and supremely weighty; he cannot be born in a borderland, for the earth would tilt and slant; thus he dwells in the center. Converting throughout the ten directions, all the buddhas of antiquity who arose came forth here.