The Long Āgama Sūtra 8.20

8.20

佛告梵志：「汝所行者皆為卑陋，離服裸形，以手障蔽，不受瓨食，不受盂食，不受兩壁中間食，不受二人中間食，不受兩刀中間食，不受兩盂中間食，不受共食家食，不受懷姙家食，見狗在門則不受其食，不受多蠅家食，不受請食，他言先識則不受其食；不食魚，不食肉，不飲酒，不兩器食，一餐一咽，至七餐止，受人益食，不過七益；或一日一食，或二日、三日、四日、五日、六日、七日一食；或復食果，或復食莠，或食飯汁，或食麻米，或食稴稻，或食牛糞，或食鹿糞，或食樹根、枝葉、果實，或食自落果。

The Buddha told the wanderer, “Your practices are crude. You go naked without clothes and cover yourselves with your hands. You don’t accept food in pots or bowls. You don’t accept food while between two walls, between two people, between two blades, or between two bowls. You don’t accept food when a family is eating together, when there’s a pregnancy in the household, when you see a dog at the door, or when a home has lots of flies. You don’t accept invitations to meals or food from someone who says they know you. You don’t eat fish or meat and don’t drink wine. You don’t take two bowls of food, considering one swallow to be a meal … seven meals and stopping. When you accept a person’s beneficial food, you don’t do so more than seven times. Sometimes, you eat one meal a day or one every two days, three days, four days, five days, six days, or seven days. Sometimes, you eat fruit or weeds and drink juice. You eat flax seed, rice, long-grain rice, cow dung, deer dung, tree roots, branches, leaves, and fruit, or only fruit that has fallen naturally.