Mahabharata 12.49.5

तमुग्रतपसं दृष्ट्वा सहस्राक्षः पुरंदरःसमर्थः पुत्रजनने स्वयमेवैत्य भारत

tamugratapasaṃ dṛṣṭvā sahasrākṣaḥ puraṃdaraḥsamarthaḥ putrajanane svayamevaitya bhārata

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