Mahabharata 3.74.19

मम च व्यवसायेन तपसा चैव निर्जितःदुःखस्यान्तेन चानेन भवितव्यं हि नौ शुभे

mama ca vyavasāyena tapasā caiva nirjitaḥduḥkhasyāntena cānena bhavitavyaṃ hi nau śubhe

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