Mahabharata 5.186.10

मा स्मैवं साहसं वत्स पुनः कार्षीः कथंचनभीष्मेण संयुगं गन्तुं क्षत्रियेण विशेषतः

mā smaivaṃ sāhasaṃ vatsa punaḥ kārṣīḥ kathaṃcanabhīṣmeṇa saṃyugaṃ gantuṃ kṣatriyeṇa viśeṣataḥ

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