Ramayana
ऋषेस्तु वचनं श्रुत्वा मामाह पुरुषर्षभः । सूत न क्वचिदेवं ते वक्तव्यं जनसन्निधौ ॥ 7-50-15 ॥
"Having heard the sage's words, the bull among men said to me: 'O charioteer, this must nowhere be spoken by you in the presence of people.'"
english translation