樂邦遺稿 1.133

1.133

《十疑論》云「兜率天彌勒所居，又有女人，諸天愛著。不如彌陀淨土（云云）。昔西國有無著、世親、師子覺三菩薩，結契同生兜率。若先去者得見彌勒，誓來相報。師子覺前亡，數年不來。後世親亡，三年已方來。無著問曰：『何故爾遲？』世親曰：『吾至彼聽彌勒一坐說法，旋遶即來。彼天日長，故此三載。若師子覺生彼，在外天宮，著於五欲。自去總不見彌勒，是故不來。』諸小菩薩生彼尚著五欲，何況凡夫。為此故勸生西方，不勸生兜率也。」

The Treatise Resolving Ten Doubts states: "Tuṣita Heaven is where Maitreya dwells; there are also women there, and the devas are attached [to desires]. It is not like Amitābha's Pure Land (and so forth). Formerly in the Western Country, there were three bodhisattvas—Asaṅga, Vasubandhu, and Siṃhabhadra—who made a covenant to be reborn together in Tuṣita. Whichever reached there first and saw Maitreya vowed to return and report. Siṃhabhadra died first, but for several years did not return. Later Vasubandhu died, and only after three years did he return. Asaṅga asked: 'Why were you so slow?' Vasubandhu replied: 'I arrived there, listened to Maitreya preach the Dharma for a single session, circumambulated him, and immediately came back. The days in that heaven are long, hence three years passed here. As for Siṃhabhadra, having been born there in an outer heavenly palace, he became attached to the five desires. Since arriving he has not seen Maitreya at all, which is why he did not return.' When even small bodhisattvas born there still become attached to the five desires, how much more so ordinary mortals! For this reason, rebirth in the Western Land is encouraged, while rebirth in Tuṣita is not encouraged."