Shiva Purana
सदाचारविहीनस्य पतितस्यान्त्यजस्य च ॥ पञ्चाक्षरात्परं नास्ति परित्राणं कलौ युगे ॥ ६२ ॥
In the age of Kali there is no greater protective factor than the five-syllabled Mantra to a fallen or a low-born person devoid of good conduct.
english translation
sadAcAravihInasya patitasyAntyajasya ca ॥ paJcAkSarAtparaM nAsti paritrANaM kalau yuge ॥ 62 ॥
hk transliteration by Sanscript