法苑珠林 72.21

72.21

問四食相攝云何。答如毘曇中說。總而言之。六趣之中皆具四食然有寬陜不同。如地獄中得有段食者。如有鐵丸及洋銅汁。雖復增苦。以壞飢渴故名段食。又如輕繫獄中得具冷煖二風。更互觸身亦名段食。唯上二界無有段食。以彼身輕妙。故論偈云。

Question: How do the four nutriments subsume [the realms]? Answer: As explained in the Abhidharma: Generally speaking, the six destinies all possess the four nutriments, yet with differences in breadth and narrowness. For example, that material nutriment is present in the hells is because there are iron pellets and molten copper broth; although these intensify suffering, because they destroy hunger and thirst, they are called material nutriment. Furthermore, as in the hell of mild detention, they are able to encounter cold and warm winds that alternately touch their bodies, which is also called material nutriment. Only the upper two realms lack material nutriment, because their bodies are light and subtle. Therefore the śāstra verse says: