Mahāsutasomajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (2) · Vol. 28 · Section 339

[339] "The promise (saṅgara) that you made with the brahmin while you stood in sovereignty over your own realm — having fulfilled that promise to the brahmin, return again, guarding truth."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.