Mahabharata 12.118.5
कुलजः प्रकृतो राज्ञा तत्कुलीनतया सदान पापे कुरुते बुद्धिं निन्द्यमानोऽप्यनागसि
kulajaḥ prakṛto rājñā tatkulīnatayā sadāna pāpe kurute buddhiṃ nindyamāno'pyanāgasi
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book