注維摩詰經 9.122

9.122

什曰，萬善無常隨意所成，故須方便迴向佛道。如缾沙王被繫在獄，獄孔中遙見佛於山上往來，心大歡喜，應生兜率天。在中聞毘沙門天王食香，以餓死故心甚樂著，我今當往生彼食處，即時於毘沙門樓上化生。小既迴向，大亦宜然。肇曰：方便迴向，進善之要行，故常安住焉。

[Kumāra]jīva says: The myriad wholesome deeds are impermanent and take shape according to one's intentions; therefore, one must use upāya to dedicate them toward the Buddha-Way. For example, King Bimbisāra was imprisoned; through an opening in the prison, he saw the Buddha pacing back and forth on the mountain in the distance. He rejoiced greatly, and was due to be reborn in Tuṣita Heaven. While still [in the prison], he smelled the food-fragrance of Heavenly King Vaiśravaṇa, and having starved, his mind became exceedingly attached, [thinking:] 'I shall now go and be reborn where that food is!' Thereupon he was instantly reborn by transformation upon Vaiśravaṇa's tower. If even minor [intentions] bring about dedication, the great [Way] should all the more be so. [Seng]zhao says: Upāya-dedication is the essential practice for advancing in wholesome deeds; hence [they] constantly abide in it.