四分律刪繁補闕行事鈔 3.139

3.139

二明自煮者。《僧祇》：若練若處淨人病，無淨人者，得淨穀已，比丘自舂，作粥與淨人；淨人若食不盡，不得自食（準《十誦》，先無共心，一心與者，亦得）。《僧祇》：若淨人難得，比丘欲自作食者，當自洗不受膩器，著水，自然火令沸（此是體淨。僧器有膩，不合自然火也，誡之）；使淨人著米內湯中已，更不得觸；使淨人煮沸已，得以木橫置地，比丘在上，令淨人置食器木上，口言受受，然後自煮令熟，與病人，莫令不受物落中。乃至煮菜令萎，同上作法。薑湯亦不得自煮，以變生故。若乞得冷食，自溫煮，不犯。作食時，淨人小者，得捉其手教淘、教寫、抒飯等。

Second is explaining cooking for oneself. The Mahāsāṃghika-vinaya states: If in an araṇya the kappiyakāraka is ill and there is no [other] kappiyakāraka, after obtaining pure grain, a bhikṣu may personally hull it and make gruel to give to the kappiyakāraka; if the kappiyakāraka does not eat it all, he must not eat it himself. (According to the Daśādhyāya-vinaya, if there was no prior shared intention and it is given with a single mind, it is also permissible.) The Mahāsāṃghika-vinaya states: If a kappiyakāraka is hard to find and a bhikṣu wishes to make food himself, he should personally wash an ungreased utensil, add water, and make it boil over natural fire. (This is physical purity. Utensils of the saṃgha have grease and are not suited for natural fire; take heed of this.) Have the kappiyakāraka put rice into the boiling water, after which he must not touch it further; have the kappiyakāraka boil it, after which one may place a piece of wood horizontally on the ground; with the bhikṣu above it, have the kappiyakāraka place the food utensil on the wood, verbally say "Receive, receive," and only then personally cook it until done to give to the sick person, not letting anything unreceived fall into it. Even cooking vegetables until wilted follows the above procedure. Ginger decoction also must not be cooked by oneself, because it alters what is raw. If one begs cold food and heats and boils it oneself, there is no offense. When preparing food, if the kappiyakāraka is young, one may hold his hands to teach him to rinse, teach him to pour, dish up rice, and so forth.