大般涅槃經疏 29.10

29.10

「迦葉言未來云何」下，第三番釋疑。疑云：未來未有，云何生善？佛答又二：先譬、次合。初文先舉燈日譬。若鏗然固執，燈日未出不能破闇；若因緣假名，燈日未生亦能破闇。次「佛性亦爾」下，合眾生皆有未來之善能生佛性。

From "Kāśyapa said: How about the future?" downward is the third section, resolving doubts. The doubt is: "The future does not yet exist; how can it produce goodness?" The Buddha's answer also has two parts: first, a simile, and next, its application. The first passage first brings up the similes of a lamp and the sun. If one clings stubbornly with unbending obstinacy, the lamp and the sun, not having yet appeared, cannot dispel darkness; but if [understood as] dependent origination and provisional designation, even before the lamp and the sun have arisen, they can dispel darkness. Next, from "The buddhadhātu is also like this" downward, it applies this: sentient beings all possess future goodness that is capable of producing the buddhadhātu.