法華玄論 2.181

2.181

答。正法實非因果，為眾生開因果法門，故名為用；權實亦爾。但今明因果，異舊因果。所言因者，具足二因：一者佛性、二者緣因。以眾生有佛性，故修萬行方得成佛也。所言果者亦具二果：一無德不圓、二無累不盡。此義現《法華論》，後當說之。故言正法為體、因果為用也。

Answer: The correct Dharma is truly not cause and fruit, but it opens the Dharma gate of cause and fruit for sentient beings, hence it is called the function; provisional and real are also like this. But the cause and fruit clarified now differ from the old cause and fruit. What is called the cause is complete with two causes: first, Buddha-nature; second, conditional causes. Because sentient beings possess Buddha-nature, by cultivating the myriad practices they can then achieve Buddhahood. What is called the fruit is also complete with two fruits: first, no virtue is not perfected; second, no encumbrance is not exhausted. This meaning appears in the Saddharmapuṇḍarīkopadeśa and will be explained later. Therefore it is said that the correct Dharma is the essence, and cause and fruit are the function.