The Tipiṭaka in Three Languages

Hetudukamaggāraṁmaṇattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 716

[716] A phenomenon (dhamma) that is a root (hetu) and has the path (magga) as its object is a condition, by immediacy condition (anantara-paccaya), for a phenomenon that is a root and has the path as its object.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 4 other places