The Tipiṭaka in Three Languages

Hetudukasanidassanasappaṭighattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 881

[881] A phenomenon (dhamma) that is a root (hetu), invisible (anidassana), and non-impinging (appaṭigha), is a condition, by root condition (hetu-paccaya), for a phenomenon that is a root, invisible, and non-impinging: three.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places