Ramayana
दिष्ट्या त्वं राक्षसेन्द्रेण द्वन्द्वयुद्धमुपागतः । देवतानामवध्येन विजयं प्राप्तवानसि ॥ 7-1-27 ॥
'By good fortune, having engaged in single combat with the lord of Rakshasas — who was invincible to the gods — you achieved victory.'
english translation