Ramayana
येन वैश्रवणो राजा द्वैमात्रः कारणान्तरे । द्वन्द्वमासादितः क्रोधाद्रणे विक्रम्य निर्जितः ॥ ३-४८-४
For some reason or other a duel took place between me and king Kubera. With my prowess, I defeated him in the duel. [3-48-4]
english translation
yena vaizravaNo rAjA dvaimAtraH kAraNAntare । dvandvamAsAditaH krodhAdraNe vikramya nirjitaH ॥ 3-48-4
hk transliteration by Sanscript