Mahabharata 12.99.9

क्षत्रधर्मे स्थितो भूत्वा यथाशास्त्रं यथाविधिउदीक्षमाणः पृतनां जयामि युधि वासव

kṣatradharme sthito bhūtvā yathāśāstraṃ yathāvidhiudīkṣamāṇaḥ pṛtanāṃ jayāmi yudhi vāsava

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