Mahabharata 15.12.6
उत्साहप्रभुशक्तिभ्यां मन्त्रशक्त्या च भारतउपपन्नो नरो यायाद्विपरीतमतोऽन्यथा
utsāhaprabhuśaktibhyāṃ mantraśaktyā ca bhārataupapanno naro yāyādviparītamato'nyathā
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book