Mahabharata 13.4.40
क्षत्रियं तूग्रकर्माणं त्वं भद्रे जनयिष्यसिन हि ते तत्कृतं साधु मातृस्नेहेन भामिनि
kṣatriyaṃ tūgrakarmāṇaṃ tvaṃ bhadre janayiṣyasina hi te tatkṛtaṃ sādhu mātṛsnehena bhāmini
Our plain-language meaning of this verse is waiting for scholar review.