Kalahvivādasuttanidadesa

Suttapiṭaka · Khuddakanikāya · Mahāniddesa · Vol. 29 · Section 471

[471] Anger (kodha), false speech (mosavajja), and doubt (vicikicchā as kathaṃkathā) — these dhammas too come to be when just that dyad exists; one given to doubt should train for the path of knowledge (ñāṇa): it was after knowing them that the dhammas were declared by the Ascetic.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.