Ramayana
राक्षसं वा मनुष्यं वा शृणुते ऽयं बलाधिकम् । रावणस्तं समासाद्य युद्धे ह्वयति दर्पितः ॥ 7-34-2 ॥
Whenever he heard of a Rakshasa or a man of surpassing strength, Ravana, swollen with pride, would seek him out and challenge him to battle.
english translation