Tuvaṭakasuttaniddesa

Suttapiṭaka · Khuddakanikāya · Mahāniddesa · Vol. 29 · Section 708

[708] Whatever dhamma one may directly know, whether internally or else externally, one should not create obstinacy on account of it; for that is not called quenching (nibbuti) by the good.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.