俱舍論疏 28.62

28.62

論「若謂經說至無斯過者」，牒引兩經救也。以有經說一類天超段食，故知色、無色界無段食也。「又經說彼天喜為食故，無上二界有段食過」者，此述大眾部意。前所引文雖無簡別，別有此兩文有簡別，故知上二界定無段食。

The Śāstra says: "If you say that the sūtra states [...] there is no such fault." This cites two sūtras used as a rescue argument. Because there is a sūtra stating that a certain class of devas transcends solid nutriment, one knows that the form and formless realms lack solid nutriment. "Furthermore, the sūtra states that those devas take joy as nutriment; therefore, there is no fault of the upper two realms having solid nutriment"—this expresses the Mahāsāṃghika's intention: although the previously cited text had no qualification, these two distinct texts have qualifications, and therefore one knows that the upper two realms definitely lack solid nutriment.