As a fire burns dry grass to ashes, so the holy name of the Lord, whether chanted knowingly or unknowingly, burns to ashes, without fail, all the reactions of one’s sinful activities.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
अज्ञानादथवा ज्ञानादुत्तमश्लोकनाम यत् । सङ्कीर्तितमघं पुंसो दहेदेधो यथानलः
ajñānādathavā jñānāduttamaślokanāma yat | saṅkīrtitamaghaṃ puṃso dahededho yathānalaḥ
SB 6.2.18