Ramayana
अपरे दुर्जयं रक्षो जानन्तः प्राज्ञसम्मताः । जिताः स्म इत्यभाषन्त राक्षसं बलदर्पितम् ॥ 7-16-50 ॥
Others, esteemed by the wise and knowing the demon to be invincible, said to that Rakshasa, who was proud of his strength, 'We are vanquished.'
english translation