Ariyavohārasutta

“Aṭṭhime, bhikkhave, ariyavohārā. Katame aṭṭha? Adiṭṭhe adiṭṭhavāditā, asute asutavāditā, amute amutavāditā, aviññāte aviññātavāditā, diṭṭhe diṭṭhavāditā, sute sutavāditā, mute mutavāditā, viññāte viññātavāditā. Ime kho, bhikkhave, aṭṭha ariyavohārā”ti. Aṭṭhamaṁ.

“Mendicants, there are these eight noble expressions. What eight? Saying you haven’t seen, heard, thought, or known something, and you haven’t. And saying you’ve seen, heard, thought, or known something, and you have. These are the eight noble expressions.”