說無垢稱經疏 6.110

6.110

贊曰：下釋所由。戒定等五，如前已釋。食從此等無邊因生，果亦無量。佛食之餘，故諸有情經百千劫食終不盡。

Commentary: The following explains the reason. The five factors including morality and concentration have been explained as before. This food is born from these boundless causes, and its fruition is also immeasurable. Since it is the remainder of the Buddha's meal, sentient beings eating it for hundreds of thousands of eons can never exhaust it.