四分律行事鈔資持記 3.566

3.566

三中，《十誦》明赴請法，初示威儀。默然是口，一心是意，淨持等是身。應下，明觀法有三，初觀功力來處。當下，次觀變穢。人腸上節食未變是生藏，下節變為糞穢，名熟藏。由下，觀事緣。謂經營擾亂，發起三道。

In the third, the *Daśādhyāya-vinaya* explains the method of going to an invitation: first it shows the comportment. "Remaining silent" pertains to the mouth, "single-mindedness" pertains to the mind, and "holding cleanly," etc., pertains to the body. From "Should" below, it explains that the method of contemplation has three aspects: first, contemplating the labor and effort and the source. From "Shall" below, next is contemplating the transformation into filth. The upper section of the human intestine where food has not yet transformed is the receptacle of raw food (āmāśaya); the lower section where it transforms into excrement and filth is called the receptacle of digested food (pakvāśaya). From "From" below, contemplating the matters and conditions: this refers to managing and causing disturbance, giving rise to the three paths.