Mahabharata 5.91.6

धर्मकार्यं यतञ्शक्त्या न चेच्छक्नोति मानवःप्राप्तो भवति तत्पुण्यमत्र मे नास्ति संशयः

dharmakāryaṃ yatañśaktyā na cecchaknoti mānavaḥprāpto bhavati tatpuṇyamatra me nāsti saṃśayaḥ

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