The Tipiṭaka in Three Languages

Cittaduka

Abhidhammapiṭaka · Paṭṭhāna (4) · Vol. 43 · Section 68

[68] A phenomenon (dhamma) that is mind (citta) is a condition for a phenomenon that is mind by repetition condition (āsevana-paccaya): nine.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places