Kokilavagga

Suttapiṭaka · Khuddakanikāya · Jātaka (1) · Vol. 27 · Section 624

[624] Therefore, in season and out of season, the wise man should guard his speech; he should not speak beyond bounds, even toward one who is his own equal.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.