Shiva Purana
यश्चेत्थं भस्मसद्भावं ज्ञात्वा स्नाति च भस्मना ॥ अग्निरित्यादिभिर्मन्त्रैर्बद्धः पाशात्प्रमुच्यते ॥ १४ ॥
He who dusts himself with Bhasma repeating the mantra “Agniriti” etc., if bound becomes free from bondage.
english translation
yazcetthaM bhasmasadbhAvaM jJAtvA snAti ca bhasmanA ॥ agnirityAdibhirmantrairbaddhaH pAzAtpramucyate ॥ 14 ॥
hk transliteration by Sanscript