Matsya Purana 246.93

246.93

sūta uvāca.
ityetaddevadevasya viṣṇormāhātmyamuttamam.
vāmanasya paṭhedyastu sarvapāpaiḥ pramucyate .. 246.93 ..

Arjuna said :—O Lord ! I have heard from you all about the glory of Viṣṇu. Now permit me to go to Gangâdvâra Sûta said :—Thus saying Arjuna went away ; and Śaunaka went to the forest of Naimiṣâraṇya. One who reads or listens to this piece of glory of Lord Viṣṇu will be liberated from all sins”—88-92