瑜伽師地論略纂 2.117

2.117

「又於那落迦受生有情，有微細段食，謂腑藏間有微動風」等者，諸大地獄皆有此食。六十六說無麁食，今說細者。其麁物，小地獄亦有，由諸段食於變壞時方能起用資諸根等，由此因緣，彼得久住。非如小乘，吞鐵丸時，暫除飢渴，說之為食。不資長故、唯損壞故。四食之義，廣如〈決擇〉及別章說。《阿含經》說八食，如《法花疏》。

Regarding "Furthermore, for sentient beings born in the narakas, there is subtle kavaḍīkārāhāra, meaning there is a slightly moving wind within the viscera," etc.: All great hells have this food. Fascicle sixty-six says there is no coarse food, whereas here it speaks of subtle food. As for coarse substances, small hells also have them; it is only when various kinds of kavaḍīkārāhāra transform and disintegrate that they can produce the function of nourishing the sense faculties and so forth, and by this condition, they are able to abide for a long time. It is not as the Hīnayāna claims, that when they swallow iron pellets, their hunger and thirst are temporarily dispelled, which is spoken of as food; because it does not nourish and sustain, and only causes injury and destruction. The meaning of the four foods is explained in detail as in the "Viniścaya" and in separate chapters. The *Āgama-sūtras* speak of eight foods, as explained in the commentary on the *Lotus Sūtra*.