諸經要集 17.57

17.57

又央掘摩經云。文殊師利白佛言。世尊。因如來藏故諸佛不食肉耶。佛言。如是一切眾生。無始生死生生輪轉。無非父母兄弟姊妹。猶如伎兒變易無常。自肉他肉則是一肉。是故諸佛悉不食肉。復告文殊師利。一切眾生界我界。即是一界。所食之肉即是一肉。是故諸佛悉不食肉。佛告文殊。若自死牛。牛主持皮用作革屣。施持戒人。為應受不。不為受者是比丘法。若受者非悲。然不破戒以從展轉。離殺因緣故也。

Furthermore, the Aṅgulimālīya-sūtra says: 'Mañjuśrī addressed the Buddha, saying: "Bhagavat, is it because of the tathāgatagarbha that the Buddhas do not eat meat?" The Buddha said: "So it is. All sentient beings, transmigrating life after life through beginningless saṃsāra, have never failed to be one's father, mother, elder brother, younger brother, elder sister, or younger sister; like actors, they change and are impermanent. One's own flesh and another's flesh are the same flesh; therefore, all Buddhas do not eat meat." He further told Mañjuśrī: "The realm of all sentient beings and my realm are the same single realm. The flesh consumed is the same single flesh. Therefore, all Buddhas do not eat meat." The Buddha told Mañjuśrī: "If a cow dies naturally, and the cow's owner takes its hide to make leather shoes and gives them as an alms-offering to a person who keeps the precepts, should they be accepted or not? Not accepting them is the rule for a bhikṣu. If one accepts them, it is not compassionate; however, it does not break the precepts, because it is indirect and separated from the causes and conditions of killing."'