Shiva Purana

siva.sh/siva-purana/uma-samhita/23/19

तीर्थस्नानैस्तपोभिर्वा दुष्टात्मा नैव शुध्यति ।। श्वदृतिः क्षालिता तीर्थे किं शुद्धिमधिगच्छति ।। १९ ।।

sanskrit

A vicious soul is not sanctified by the waters in the pilgrim spots nor by austerities. Does the canine hide become pure when washed in a holy river?

english translation

tIrthasnAnaistapobhirvA duSTAtmA naiva zudhyati || zvadRtiH kSAlitA tIrthe kiM zuddhimadhigacchati || 19 ||

hk transliteration by Sanscript