Mahabharata 3.177.7

क्रतुभिस्तपसा चैव स्वाध्यायेन दमेन चत्रैलोक्यैश्वर्यमव्यग्रं प्राप्तो विक्रमणेन च

kratubhistapasā caiva svādhyāyena damena catrailokyaiśvaryamavyagraṃ prāpto vikramaṇena ca

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