Soṇakajātaka

Suttapiṭaka · Khuddakanikāya · Jātaka (2) · Vol. 28 · Section 76

[76] One who sympathizes (anukampaka) may speak even one word, or two; beyond that he should not speak — like a slave in his master's presence.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.