Mahāhaṁsajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (2) · Vol. 28 · Section 226

[226] Not out of fear, O lord of Kāsi — now that life has been brought to its close — do we speak a word possessed of meaning, having arrived at the turn of our time. Whoever slays a deer by means of a deer, or a bird by means of a bird, or would ensnare the learned by means of learning — what is more ignoble than that? And whoever utters noble speech while given to an ignoble way, he falls away from both worlds — from this world and from the world beyond. Let one not be intoxicated on attaining glory; let one not be shaken when fallen into peril; let one strive ever on in one's duties, and let one close up the openings. Those elders who have passed on, having arrived at the turn of their time, having practiced the Dhamma here — thus have they gone to heaven (tidiva). Having heard this, O lord of Kāsi, guard the Dhamma in yourself, and set free Dhataraṭṭha, the noblest and supreme of geese (haṃsa).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.