[353] "And how, Ānanda, does the peril of the pupil come about? Here, Ānanda, a disciple of that same teacher, cultivating seclusion in emulation of that teacher, resorts to a secluded lodging: a forest, the root of a tree, a mountain, a mountain cleft, a hill cave, a charnel ground, a forest thicket, the open air, a heap of straw. While he dwells thus withdrawn, brahmins and householders, both of town and of country, stream in upon him. When the brahmins and householders, both of town and of country, have streamed in upon him, he relishes infatuation, falls into greed, and reverts to luxury. This one, Ānanda, is called a pupil beset by the peril of the pupil. Evil, unwholesome states — defiling, conducive to renewed existence, feverish, ripening in suffering (dukkha), making for future birth, aging, and death (jāti, jarā, maraṇa) — have slain him. Thus indeed, Ānanda, does the peril of the pupil come about."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.