The Tipiṭaka in Three Languages

Suññatavāra

Abhidhammapiṭaka · Dhammasaṅgaṇī · Vol. 34 · Section 363

[363] Or whatever other dependently arisen (paṭiccasamuppannā) immaterial (arūpino) phenomena (dhammā) there are on that occasion — these phenomena are indeterminate (abyākatā).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places