Ramayana
तदासीत्तुमुलं युद्धं यमराक्षसयोर्द्वयोः । जयमाकाङ्क्षतोर्वीर समरेष्वनिवर्तिनोः ॥ 7-22-17 ॥
At that time there was a tumultuous battle between those two, Yama and the Rakshasa, O hero, both desiring victory and never retreating in their encounters.
english translation