Mahāsutasomajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (2) · Vol. 28 · Section 350

[350] "A pledge was made by me with a brahmin while I stood in sovereignty over my own realm; having made good that pledge to the brahmin, I have come back as one who guards truth. Offer up your sacrifice, O Porisāda — eat me!"

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 28 · Section 340 — Mahāsutasomajātaka