The Tipiṭaka in Three Languages

Hetudukkusalattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 39

[39] A non-root (na-hetu) unwholesome phenomenon (dhamma) is a condition for a non-root unwholesome phenomenon by nutriment condition (āhāra-paccaya): three.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places