The Tipiṭaka in Three Languages

Suññatavāra

Abhidhammapiṭaka · Dhammasaṅgaṇī · Vol. 34 · Section 347

[347] Which, on that occasion, is the faculty of equanimity (upekkhindriya)? That mental [state] which on that occasion is neither agreeable nor disagreeable; the neither-painful-nor-pleasant experience born of mind-contact (cetosamphassa); the neither-painful-nor-pleasant feeling (vedanā) born of mind-contact — this, on that occasion, is the faculty of equanimity.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places