Mahabharata 18.5.35

18.5.35

ya idaṃ śrāvayedvidvānsadā parvaṇi parvaṇi |
dhūtapāpmā jitasvargo brahmabhūyāya gacchati || 35 ||

That learned man who recites this history of sacred days in the midst of a listening auditory becomes cleansed of every sin, conquers Heaven, and attains to the status of Brahma. Of that man who listens with rapt attention to the recitation of the whole of this Veda composed by (the Island-born) Krishna, a million sins, numbering such grave ones as Brahmanicide and the rest, are washed off. The Pitris of that man who recites even a small portion of this history at a Sraddha, obtain inexhaustible food and drink. The sins that one commits during the day by one’s senses or the mind are all washed off before evening by reciting a portion of the Mahabharata. Whatever sins a Brahmana may commit at night in the midst of women are all washed off before dawn by reciting a portion of the Mahabharata.