Kaṭuviyasuttaṃ [AN 3.128, PTS 1.280–1.281]

6.

The Discourse on Kaṭuviya

129. On one occasion the Blessed One was dwelling at Bārāṇasī in the Deer Park at Isipatana. Then the Blessed One, having dressed in the earlier period of the day, taking his bowl and robe, entered Bārāṇasī for almsfood. The Blessed One, walking for almsfood near the fig tree at the cattle market, saw a certain monk devoid of gratification, seeking gratification externally, unmindful, not fully aware, unconcentrated, with a wandering mind, with uncontrolled faculties. Having seen him, he said this to that monk -

"Do not, monk, make yourself impure. That indeed, monk, flies will not fall upon and devour one who has made himself impure, soaked with verminous odour - this is impossible." Then that monk, exhorted by the Blessed One with this exhortation, attained a sense of urgency. Then the Blessed One, having walked for almsfood in Bārāṇasī, after the meal, having returned from his alms round, addressed the monks -

"Here, monks, having dressed in the earlier period of the day, taking my bowl and robe, I entered Bārāṇasī for almsfood. I saw, monks, walking for almsfood near the fig tree at the cattle market, a certain monk devoid of gratification, seeking gratification externally, unmindful, not fully aware, unconcentrated, with a wandering mind, with uncontrolled faculties. Having seen him, I said this to that monk -

'Do not, monk, make yourself impure. That indeed, monk, flies will not fall upon and devour one who has made himself impure, soaked with verminous odour - this is impossible.' Then, monks, that monk, exhorted by me with this exhortation, attained a sense of urgency." When this was said, a certain monk said this to the Blessed One - "What indeed, venerable sir, is impurity? What is verminous odour? What are flies?"

"Covetousness, monk, is impurity; anger is verminous odour; evil unwholesome thoughts are flies. That indeed, monk, flies will not fall upon and devour one who has made himself impure, soaked with verminous odour - this is impossible."