The Tipiṭaka in Three Languages

Cittuppādakaṇḍa

Abhidhammapiṭaka · Dhammasaṅgaṇī · Vol. 34 · Section 56

[56] Which, on that occasion, is tranquility of mind (cittappassaddhi)? That which on that occasion is tranquility, quiescence, calming, quieting down, the state of being quieted, of the aggregate of consciousness (viññāṇakkhandha) — this, on that occasion, is tranquility of mind.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 3 other places