Mahabharata 3.81.118

कपालमोचनं तीर्थं सर्वपापप्रमोचनम्तत्र स्नात्वा नरव्याघ्र सर्वपापैः प्रमुच्यते

kapālamocanaṃ tīrthaṃ sarvapāpapramocanamtatra snātvā naravyāghra sarvapāpaiḥ pramucyate

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