Mahabharata 3.81.60

ब्रह्माणमभिगम्याथ शुचिः प्रयतमानसःसर्वपापविशुद्धात्मा ब्रह्मलोकं प्रपद्यते

brahmāṇamabhigamyātha śuciḥ prayatamānasaḥsarvapāpaviśuddhātmā brahmalokaṃ prapadyate

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