Mahabharata 3.80.104

तत्र स्नात्वा नरश्रेष्ठ वाजपेयमवाप्नुयात्सर्वपापविशुद्धात्मा गच्छेच्च परमां गतिम्

tatra snātvā naraśreṣṭha vājapeyamavāpnuyātsarvapāpaviśuddhātmā gacchecca paramāṃ gatim

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