Mahabharata 12.60.17
वधं हि क्षत्रबन्धूनां धर्ममाहुः प्रधानतःनास्य कृत्यतमं किंचिदन्यद्दस्युनिबर्हणात्
vadhaṃ hi kṣatrabandhūnāṃ dharmamāhuḥ pradhānataḥnāsya kṛtyatamaṃ kiṃcidanyaddasyunibarhaṇāt
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book