Mahabharata 13.48.48

आत्मानमाख्याति हि कर्मभिर्नरः; स्वशीलचारित्रकृतैः शुभाशुभैःप्रनष्टमप्यात्मकुलं तथा नरः; पुनः प्रकाशं कुरुते स्वकर्मभिः

ātmānamākhyāti hi karmabhirnaraḥ; svaśīlacāritrakṛtaiḥ śubhāśubhaiḥpranaṣṭamapyātmakulaṃ tathā naraḥ; punaḥ prakāśaṃ kurute svakarmabhiḥ

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