諸經要集 17.55

17.55

第九明食肉之人。淨者尚不應貪。況不淨肉。是故行者不應食肉。如彼經說。我說凡夫為求淨命噉於淨食。尚應生心如子肉想。何況聽食非聖人食。聖人離著。以肉能生無量諸過失故。於出世一切功德。云何言我聽諸弟子食諸肉血不淨等味。言我聽者。是則謗我。故內律云。食生肉血等。得偷蘭遮罪。

Ninth, explaining that even pure [food] should not be craved, how much less so impure meat! Therefore, practitioners should not eat meat. As that sūtra says: 'I teach that when ordinary persons eat pure food in pursuit of a pure livelihood, they should still generate the thought of it being like the flesh of their own child; how much less would I allow them to eat what is not the food of noble ones! Noble ones are free from attachment. Because meat can produce immeasurable faults against all supramundane merits, how could it be said that I permit my disciples to consume the impure flavors of meat and blood? Those who say I permit it are slandering me.' Therefore the internal Vinaya states that consuming raw meat, blood, and the like incurs a thullaccaya (grave) offence.