法華玄論 6.51

6.51

六者若言昔明三乘皆是方便者，從《大品》已上乃至《法華》之前明佛乘皆是方便。若佛乘是方便，六度等因亦是方便。若爾者，付窮子財之珍寶庫藏皆是方便說耳，應非真實也。若付財之寶遂是夜光非魚目者，則《大品》明佛乘已是真實，不名方便。

Sixth: If one says that formerly all three vehicles were clarified as skillful means, then from the Pañcaviṃśati-sāhasrikā onwards down to before the Lotus Sūtra, the Buddha vehicle clarified would all be skillful means. If the Buddha vehicle were a skillful means, then causes such as the six perfections would also be skillful means. If that were so, the storehouses of jewels and precious treasures bestowed upon the impoverished son would all be provisional teachings and ought not to be real. If the treasures bestowed are indeed night-illuminating pearls and not fish eyes, then the Buddha vehicle clarified in the Pañcaviṃśati is already real and cannot be called a skillful means.