Shiva Purana
ज्ञानं लब्ध्वा च देहांते विप्रो मुक्तिमवाप्नुयात् । अन्येषां नरनारीणां त्रिःस्नानेन जपेन च ६९ ।
After acquiring perfect knowledge he shall attain salvation after death. Other men and women shall repeat the five-syllabled mantra alone throughout and take three baths every day.
english translation
jJAnaM labdhvA ca dehAMte vipro muktimavApnuyAt । anyeSAM naranArINAM triHsnAnena japena ca 69 ।
hk transliteration by Sanscript