Daddarajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (1) · Vol. 27 · Section 516

[516] Where they do not know a person by birth or by discipline (vinaya), there one should not give way to conceit (māna), while dwelling among unfamiliar people.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.