Mahabharata 9.45.35
याम्यो रौद्र्यस्तथा सौम्याः कौबेर्योऽथ महाबलाःवारुण्योऽथ च माहेन्द्र्यस्तथाग्नेय्यः परंतप
yāmyo raudryastathā saumyāḥ kauberyo'tha mahābalāḥvāruṇyo'tha ca māhendryastathāgneyyaḥ paraṃtapa
Our plain-language meaning of this verse is waiting for scholar review.