The Tipiṭaka in Three Languages

Ganthadukkusalattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 1291

[1291] A knot (gantha) that is an unwholesome phenomenon (akusala dhamma) is a condition for a knot that is an unwholesome phenomenon 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English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.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