瑜伽論記 18.539

18.539

四辨止息中，言為遮防難存活者，如律中說儉開八事，謂內宿，內煮，自煮，自手取食，受早起食，從食處持餘，食米胡桃果等，食水中可食物諸如是等例。

In the fourth [part], analyzing cessation: regarding the words 'in order to prevent difficulty in sustaining life', as the Vinaya explains the eight allowances during famine, namely: staying overnight indoors, cooking indoors, cooking by oneself, taking food with one's own hands, receiving food upon rising early, carrying leftovers from an eating place, eating rice, walnuts, fruits, and the like, and eating things edible in water—all such instances.