Mahabharata 3.258.6

मार्कण्डेय उवाच · mārkaṇḍeya uvāca

अजो नामाभवद्राजा महानिक्ष्वाकुवंशजःतस्य पुत्रो दशरथः शश्वत्स्वाध्यायवाञ्शुचिः

ajo nāmābhavadrājā mahānikṣvākuvaṃśajaḥtasya putro daśarathaḥ śaśvatsvādhyāyavāñśuciḥ

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