瑜伽論記 19.409

19.409

次明立乘因緣。補闕云：立聲聞乘有三因緣。一者、變化，佛隨所化，化作聲聞；二者、誓願，謂有眾生於聲聞乘已發誓願彼即建立以為聲聞者，此是不定性人遇緣發聲聞願，彼依此立；三、法性聲聞，謂從本來慈悲薄弱於苦怖畏不樂利他，依此法性立為聲聞。

Next, the causes and conditions for establishing the vehicles are explained. Buque says: There are three causes and conditions for establishing the Śrāvaka Vehicle. First, transformation: the Buddha, in accordance with those to be converted, transforms into a śrāvaka. Second, vows: that is, when there are sentient beings who have already made vows for the Śrāvaka Vehicle, they are established as śrāvakas; these are persons of indeterminate gotra who, upon encountering conditions, generate a śrāvaka vow, and they are established based on this. Third, śrāvakas by dharma-nature: that is, being from the beginning weak in loving-kindness and compassion, terrified of suffering, and having no delight in benefiting others; based on this dharma-nature they are established as śrāvakas.