Mahabharata 6.81.19

त्वया न चैनां सफलां करोषि; देवव्रतं यन्न निहंसि युद्धेमिथ्याप्रतिज्ञो भव मा नृवीर; रक्षस्व धर्मं च कुलं यशश्च

tvayā na caināṃ saphalāṃ karoṣi; devavrataṃ yanna nihaṃsi yuddhemithyāpratijño bhava mā nṛvīra; rakṣasva dharmaṃ ca kulaṃ yaśaśca

Our plain-language meaning of this verse is waiting for scholar review.