Mahabharata 12.128.19

तत्र धर्मविदां तात निश्चयो धर्मनैपुणेउद्यमो जीवनं क्षत्रे बाहुवीर्यादिति श्रुतिः

tatra dharmavidāṃ tāta niścayo dharmanaipuṇeudyamo jīvanaṃ kṣatre bāhuvīryāditi śrutiḥ

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