[284] Bones (aṭṭhikāni) rid of their sinew-connections, scattered in the cardinal and intermediate directions: a hand-bone in one place, a foot-bone in another, a shin-bone in another, a thigh-bone in another, a hip-bone in another, a back-bone in another, a spine-bone in another, a rib-bone in another, a breast-bone in another, a shoulder-bone in another, an arm-bone in another, a neck-bone in another, a jaw-bone in another, a tooth in another, the skull in another. He compares this very body with it: "This body too is of such a nature, will come to be thus, has not gone beyond this."
Thus he dwells contemplating the body in the body (kāyānupassī) internally, or he dwells contemplating the body in the body externally, or he dwells contemplating the body in the body both internally and externally. He dwells contemplating in the body its nature of origination, or he dwells contemplating in the body its nature of vanishing, or he dwells contemplating in the body its nature of both origination and vanishing. Or else his mindfulness (sati) that "there is a body" is established, just to the extent necessary for bare knowledge (ñāṇa) and bare remembrance; and he dwells independent, not clinging to anything in the world. Thus too, bhikkhus, a bhikkhu dwells contemplating the body in the body.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.