Pañhāvāra

Abhidhammapiṭaka · Paṭṭhāna (1) · Vol. 40 · Section 584

[584] An unwholesome (akusala) phenomenon (dhamma) is a condition (paccaya) for an indeterminate (abyākata) phenomenon by faculty condition (indriya-paccaya): Unwholesome faculties (indriya) are a condition for forms originated by mind (cittasamuṭṭhāna-rūpa) by faculty condition.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places