俱舍論記 29.103

29.103

「且世共了至依薪有火」者，犢子復答。且世共了，諸不炎熾所然之物名所燒薪，諸有光明極熱炎熾名能燒火。此能燒然彼物相續，令其後後色變體微異前前故。此火彼薪，雖俱四大、色、香、味、觸八事為體，而緣前薪故後火方得生。如緣前乳生於後酪，如緣前酒生後酢。乳、酒、酪、酢雖俱八事，而緣乳、酒生於酪、酢。由此理故，故世共說依薪有火。

[On the lemma]: "Moreover, it is commonly understood in the world … fire exists dependent on fuel."
The Vātsīputrīya answers again: Moreover, it is commonly understood in the world that whatever is unignited and to be burned is named fuel that is burned; whatever is luminous, extremely hot, and blazing is named fire that burns. This burner burns the continuum of that object, causing its subsequent colors to transform and its substance to become subtle, differing from the preceding ones. Although this fire and that fuel both have the eight entities—the four great elements along with form, smell, taste, and touch—as their substance, yet with the preceding fuel as condition, the subsequent fire is then able to arise. Just as with the preceding milk as condition, the subsequent curd arises, or with the preceding wine as condition, subsequent vinegar arises; although milk, wine, curd, and vinegar all consist of the eight entities, nevertheless with milk or wine as condition, curd or vinegar arises. Because of this principle, the world commonly says that fire exists dependent on fuel.