釋禪波羅蜜次第法門 2.72

2.72

具足食法者，食有四種：若上人大士，深山絕人，果菜隨得，趣以支命。二者、常行頭陀，受乞食法，是乞食法能破四種邪命，依正命自活，能生聖道，故名聖種。四邪命自活者：一、下口食；二、仰口食；三、四維口食；四、方口食。此是邪命之相。如舍利弗為青木女說，是中應廣分別。三者、阿蘭若，受檀越送食。四者、於僧中結淨食，有此等食，名緣具足，是名衣食具足。若無此資身因緣，則心不寧，於道有妨。

Regarding the sufficiency of food provisions, food is of four kinds: First, for superior persons and Great Beings in deep mountains cut off from humanity, they obtain fruits and wild vegetables as available, merely to sustain life. Second, constantly practicing dhūta and adopting the practice of alms-gathering: this practice of alms-gathering can destroy the four kinds of wrong livelihood and rely on right livelihood to sustain oneself, which can give rise to the noble path; hence it is called the noble lineage. The four kinds of wrong livelihood are: 1. downward-facing mouth eating; 2. upward-facing mouth eating; 3. four-intermediate-directions-facing mouth eating; 4. cardinal-directions-facing mouth eating. These are the characteristics of wrong livelihood. As Śāriputra explained to the maiden Śyāmā, this should be extensively distinguished. Third, residing in an araṇya and receiving food delivered by a dānapati. Fourth, receiving purified food within the Saṅgha. Having food such as these is called the sufficiency of conditions; this is called the sufficiency of clothing and food. If one lacks these conditions to sustain the body, the mind will be unsettled, hindering the Path.