The Tipiṭaka in Three Languages

Upādāndukkusalattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 1561

[1561] An unwholesome phenomenon (dhamma) that is clinging (upādāna) is a condition (paccaya) for an unwholesome phenomenon that is clinging, by root condition (hetu-paccaya).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places