經律異相 43.29

43.29

畜生及人一切四生。問曰。云何知人中有卵生。答曰。如所說。閻浮利地。多有商人入海採寶。得二鵠。隨意所化失一一在。與共遊戲。寢臥一室共彼合會。遂生二卵。卵漸溫熟。便生二童。後大出家學道。得阿羅漢果。一名尸披羅。二名優鉢尸婆羅。問曰。云何知人中有濕生。答曰。如經所說。有頂生王。尊者遮羅。尊者優婆遮。羅利女。問曰。云何知人中有化生。答曰。劫初人是也。已得聖法者不復卵生濕生。問曰。何故不復卵生濕生耶。答曰。卵生濕生畜生趣所攝（出鞞婆沙經第十四卷）。

Animals and humans comprise all four modes of birth. Question: “How is it known that there is egg-birth among humans?” Answer: “As it is said: In the land of Jambudvīpa, many merchants entered the ocean to gather treasures. They obtained two swans, which transformed according to their wishes, one being lost while one remained. They played together, slept in the same chamber, and copulated with it, subsequently laying two eggs. As the eggs gradually warmed and matured, two boys were born. Later, when grown, they left home to practice the Way and attained the fruit of arhatship. One was named Śīvali and the second was named Uppala-śīvali.” Question: “How is it known that there is moisture-birth among humans?” Answer: “As the sūtras explain: there was King Mūrdhagata, Venerable Cāla, Venerable Upacāla, and the maiden Śailā.” Question: “How is it known that there is apparitional birth among humans?” Answer: “The humans of the beginning of the kalpa are such. Those who have already attained the noble Dharma no longer undergo egg-birth or moisture-birth.” Question: “Why do they no longer undergo egg-birth or moisture-birth?” Answer: “Egg-birth and moisture-birth belong to the animal destiny.” (From the fourteenth fascicle of the Vibhāṣā-śāstra.)