Dīghanakhasutta

Suttapiṭaka · Majjhimanikāya · Vol. 13 · Section 272

[272] "Now, Aggivessana, this body, which has form (rūpī), is composed of the four great elements (mahābhūta), sprung from mother and father, built up from boiled rice and porridge, is of a nature to impermanence, to being worn away and rubbed away, to breaking up and destruction. It should be regarded as impermanent, as suffering (dukkha), as a disease, as a boil, as a dart, as misery, as an affliction, as alien, as disintegrating, as empty, as not-self. When one regards this body as impermanent, as suffering, as a disease, as a boil, as a dart, as misery, as an affliction, as alien, as disintegrating, as empty, as not-self, then whatever desire for the body, affection for the body, and subservience to the body there may be — that is abandoned."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.