Bad ConductDuccaritasutta

“Mendicants, there are these four kinds of bad conduct by way of speech.“Cattārimāni, bhikkhave, vacīduccaritāni. What four?Katamāni cattāri? Speech that’s false, backbiting, harsh, or nonsensical.Musāvādo, pisuṇā vācā, pharusā vācā, samphappalāpo— These are the four kinds of bad conduct by way of speech.”Imāni kho, bhikkhave, cattāri vacīduccaritānī”ti.

Similar passages elsewhere

Found by meaning, not by citation: the passages in other texts whose wording sits closest to a passage here.

AN 4.221 Verbal Conduct 0.93near 0.1Numbered Discourses 4.221 23. Bad Conduct Verbal Conduct “Mendicants, there are these four kinds of bad conduct by way of speech. What four? Speech that’s false, backbiting, harsh, or nonsensical. These are the four kind…
AN 4.149 Good Conduct 0.75near 0.1Numbered Discourses 4.149 15. Brightness Good Conduct “Mendicants, there are these four kinds of good conduct by way of speech. What four? Speech that’s true, harmonious, gentle, and thoughtful. These are the four kinds…
AN 5.247 Bad Verbal Conduct (2nd) 0.61near 0.1Numbered Discourses 5.247 25. Bad Conduct Bad Verbal Conduct (2nd) “Mendicants, there are these five drawbacks in bad verbal conduct … benefits in good verbal conduct …”…
AN 5.243 Bad Verbal Conduct (1st) 0.61near 0.1Numbered Discourses 5.243 25. Bad Conduct Bad Verbal Conduct (1st) “Mendicants, there are these five drawbacks in bad verbal conduct … benefits in good verbal conduct …”…
AN 5.244 Bad Mental Conduct (1st) 0.59near 0.1Numbered Discourses 5.244 25. Bad Conduct Bad Mental Conduct (1st) “Mendicants, there are these five drawbacks in bad mental conduct … benefits in good mental conduct …”…