Sudhābhojanajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (2) · Vol. 28 · Section 255

[255] "Of splendid complexion indeed are these brahmins; but this dog of yours — for what reason does it transform itself, displaying a radiance of manifold hues, now high, now low? Tell us, brahmins: who indeed are you?"

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 27 · Section 1679 — Kosiyajātaka