俱舍論頌疏論本 10.74

10.74

後四句頌者，明食廢立。問：「諸有漏法皆資長有，如何世尊說食唯四？」答：「雖爾，就勝說四無失。」問：「其勝者何？」答：「頌言前二益此世，所依及能依者，此明二食勝也。言此世者，現在世也。言所依者，謂有根身，段食於彼能為資益。言能依者，謂心、心所，觸食於彼能為資益。如是二食於已生身有資益功能，最為殊勝。」

As for the latter four lines of the verse, they explain the establishment and exclusion of the foods. Question: "Since all defiled phenomena support and augment existence, why did the World-Honoured One say that food is only fourfold?" Answer: "Although that is so, it is spoken of as four in terms of their pre-eminence, without error." Question: "What is their pre-eminence?" Answer: The verse says, "The first two benefit this life: the basis and that which relies on it"—this explains the pre-eminence of the first two foods. "This life" refers to the present life. "The basis" refers to the body endowed with faculties; morsel food can provide benefit to it. "That which relies on it" refers to mind and mental factors; contact-food can provide benefit to them. In this way, these two foods possess the function of benefiting the already-born body and are the most pre-eminent.