一切經音義 50.202

50.202

那伽（梵語有三義一云龍二云[象-(豕-一)+(焉-正)]三云不來孔寉經名佛為那伽由佛不更來生死故者也）。

那伽 (nāga: Sanskrit; it has three meanings: first, dragon; second, elephant; third, non-returning. The Peacock Sūtra refers to the Buddha as a nāga because the Buddha no longer returns to birth and death).