四分律刪繁補闕行事鈔 3.149

3.149

三自煮者：對處通淨、不淨地。就時通日夕。就人局大僧三人，尼中有四人。就食論生，佛開重煮故不犯；四藥中，加法盡形亦開。《十誦》：若生食，火淨已，得煮。云何淨？乃至火一觸（乃至米菜等例準也），冷食重溫。《五百問》中：若被淨藥，比丘得自合。

Third, cooking by oneself: in terms of place, it applies to both pure and impure grounds. In terms of time, it applies to both day and night. In terms of persons, it is restricted to the three classes of fully ordained monks, and among nuns there are four classes. Regarding food, discussing raw [food], the Buddha allowed recooking, so it is not an offense; among the four kinds of medicines, those kept for the rest of one's life through ritual enactment are also allowed. The Daśādhyāya-vinaya states: 'If it is raw food, once made pure by fire, it may be cooked. What is pure? Even a single touch of fire (rice, vegetables, and so forth are treated by analogy).' Cold food may be rewarmed. In the Five Hundred Questions: 'If medicine has been made pure, a bhikṣu may compound it himself.'