The Tipiṭaka in Three Languages

Hetudukapītittika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 340

[340] A phenomenon (dhamma) that is a root (hetu) and accompanied by pleasure (sukhasahagata) is a condition, by predominance condition (adhipati-paccaya), for a phenomenon that is a root and accompanied by pleasure: nine (ways).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places