Mahabharata 4.44.10

एकेन हि त्वया कर्ण किं नामेह कृतं पुराएकैकेन यथा तेषां भूमिपाला वशीकृताः

ekena hi tvayā karṇa kiṃ nāmeha kṛtaṃ purāekaikena yathā teṣāṃ bhūmipālā vaśīkṛtāḥ

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