[8] The Blessed One said this: "And what, bhikkhus, is the individual who torments himself, devoted to the practice of tormenting himself (attantapo attaparitāpanānuyogamanuyutto)? Here, bhikkhus, a certain individual goes naked (acelako), rejecting conventions, licking his hands; he does not come when asked, does not stand still when asked; he does not consent to food brought to him, nor to food prepared specifically for him, nor to an invitation. He does not receive anything from the mouth of a pot, nor from the mouth of a basket; nor across a threshold, nor across a stick, nor across a pestle; nor from two people eating together, nor from a pregnant woman, nor from a woman giving suck, nor from a woman lying with a man; nor food collected by public announcement, nor where a dog is standing by, nor where flies are swarming in throngs. He accepts no fish, no meat; he drinks no spirits, no wine, no fermented gruel. He is a one-house man, a one-morsel man; or a two-house man, a two-morsel man; … or a seven-house man, a seven-morsel man. He subsists on one small offering of food, or on two small offerings, … or on seven small offerings. He takes food once a day, or once every two days, … or once every seven days. Thus, even up to once a fortnight, he dwells devoted to the practice of eating food at stated intervals. He feeds on greens, or on millet, or on wild rice, or on hide-parings of rice, or on the haṭa water-plant, or on rice bran, or on rice-scum, or on sesame flour, or on grass, or on cow dung; he subsists on forest roots and fruits, feeding on fallen fruit. He wears garments of hemp, garments of hemp mixed with other material, shrouds from corpses, rag-robes, garments of tirīṭa bark, antelope hides, strips of antelope hide, garments of kusa grass, garments of bark, garments of wood shavings, a blanket of human hair, a blanket of animal hair, owls' wings. He is one who pulls out his hair and beard, devoted to the practice of pulling out hair and beard; he is one who stands continuously, rejecting seats; he is a squatter, devoted to the exertion of squatting; he is one who lies on thorns, making his bed upon a bed of thorns; he dwells devoted to the practice of going down into the water for bathing three times daily, including in the evening. Thus in such manifold ways he dwells devoted to the practice of tormenting and mortifying the body. This, bhikkhus, is called the individual who torments himself, devoted to the practice of tormenting himself.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.