Mahabharata 13.146.5

आत्मनोऽर्धं तु तस्याग्निरुच्यते भरतर्षभब्रह्मचर्यं चरत्येष शिवा यास्य तनुस्तथा

ātmano'rdhaṃ tu tasyāgnirucyate bharatarṣabhabrahmacaryaṃ caratyeṣa śivā yāsya tanustathā

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