The Tipiṭaka in Three Languages

Hetudukavitakkattika

Abhidhammapiṭaka · Paṭṭhāna (5) · Vol. 44 · Section 309

[309] A phenomenon (dhamma) that is a root (hetu) and is without thought-conception and without discursive thought (avitakka-avicāra) is a condition, by root condition (hetu-paccaya), for a phenomenon that is a root and is without thought-conception and without discursive thought: three.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places