[15] And which, bhikkhus, are the taints (āsava) that are to be abandoned by enduring? Here, bhikkhus, a bhikkhu, reflecting wisely, is one who endures cold, heat, hunger, and thirst; the touch of gadflies, mosquitoes, wind, sun, and creeping things; he is of such a nature as to endure ill-spoken, unwelcome ways of speech, and arisen bodily feelings (vedanā) that are painful, racking, sharp, piercing, disagreeable, displeasing, and menacing to life. For, bhikkhus, whereas taints, vexatious and feverish, might arise in one who does not endure these things, in one who endures them thus those taints, vexatious and feverish, do not occur. These, bhikkhus, are called the taints that are to be abandoned by enduring.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.