梵網經古迹記 2.86

2.86

述曰：菩薩理應捨自身肉而救物命，而反食他，必至於殺，故今制也。《文殊問經》制菩薩言：「若為己殺不得噉，若肉如林木已自腐爛，欲食得食。若欲噉肉，三說此呪：

Explanation: In principle, a bodhisattva ought to sacrifice his own flesh to save the lives of living beings; conversely eating others inevitably leads to killing. Therefore, it is now prohibited. The Mañjuśrīparipṛcchā-sūtra lays down for bodhisattvas: 'If it was killed for oneself, one must not eat it; if the meat has already naturally rotted like trees in a forest, if one wishes to eat it, one may eat it. If one wishes to consume meat, recite this dhāraṇī three times: [...]