The Tipiṭaka in Three Languages

Parittattika

Abhidhammapiṭaka · Paṭṭhāna (2) · Vol. 41 · Section 1449

[1449] A measureless phenomenon (appamāṇo dhammo) is a condition for a measureless phenomenon … One measureless aggregate (khandha) is a condition for three aggregates by connascence condition (sahajāta-paccaya).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places