Chakkamātikā

Abhidhammapiṭaka · Dhammasaṅgaṇī · Vol. 34 · Section 508

[508] The classification of form (rūpa) in the sixfold way (rūpa-saṅgaha): Form cognizable by the eye, form cognizable by the ear, form cognizable by the nose, form cognizable by the tongue, form cognizable by the body, form cognizable by the mind. Thus is the classification of form in the sixfold way. The Hexad (chakka).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.