Mahabharata 3.131.1

श्येन उवाच · śyena uvāca

धर्मात्मानं त्वाहुरेकं सर्वे राजन्महीक्षितःस वै धर्मविरुद्धं त्वं कस्मात्कर्म चिकीर्षसि

dharmātmānaṃ tvāhurekaṃ sarve rājanmahīkṣitaḥsa vai dharmaviruddhaṃ tvaṃ kasmātkarma cikīrṣasi

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