Mahabharata 1.201.5

तौ विवृद्धौ महावीर्यौ कार्येष्वप्येकनिश्चयौत्रैलोक्यविजयार्थाय समास्थायैकनिश्चयम्

tau vivṛddhau mahāvīryau kāryeṣvapyekaniścayautrailokyavijayārthāya samāsthāyaikaniścayam

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