VaggaVohārakathā

Abhidhammapiṭaka · Kathāvatthu · Vol. 37 · Section 676

[676] "Is the speech (vohāra) of the Buddha, the Blessed One, supramundane (lokuttara)?" "Yes." "Are there any who hear the speech of the Buddha, the Blessed One?" "Yes." "Is a supramundane phenomenon (dhamma) cognizable by the ear, does it impinge upon the ear, does it come into the range (āpātha) of the ear?" "It should not be said thus." …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 3 other places