Mahabharata 3.81.139

ततो गच्छेत राजेन्द्र रेणुकातीर्थमुत्तमम्तत्राभिषेकं कुर्वीत पितृदेवार्चने रतःसर्वपापविशुद्धात्मा अग्निष्टोमफलं लभेत्

tato gaccheta rājendra reṇukātīrthamuttamamtatrābhiṣekaṃ kurvīta pitṛdevārcane rataḥsarvapāpaviśuddhātmā agniṣṭomaphalaṃ labhet

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