四分律行事鈔資持記 2.1152

2.1152

In the next subsection, in the Samantapāsādikā, first, transferring food held [by oneself]. Because when a bhikṣu holds it himself, overnight touch may occur; exchanging it with a member of the minor assemblies frees the food from fault. Below, from "Even", transferring food being prepared. The matter is also the same as above. In the note, according to the mutual exchange above, when the mind severs [possession], the exception succeeds; conversely, it clearly shows that if it is not severed, it remains impure, which can be known. (According to the four medicines, if a pure person touches it, it is forfeited, and one washes hands and receives it again; this is due to giving it to another, making it impermissible to receive the food.)