Uttarajjhayana 128.1.3

128.1.3

kālīpavvaṃgasaṃkāse | kise dhamaṇisaṃtae /
māyanne asaṇapāṇassa | adīṇamaṇaso care ||3||

Though his body be weakened by hunger, a monk who is strong (in self-control) and does penance, should not cut or cause another to cut (anything to be eaten), nor cook it or cause another to cook it. (2)
Though emaciated like the joint of a crow's (leg) and covered with a network of veins, he should know the permitted measure of food and drink, and wander about with a cheerful mind. (3)