Shiva Purana

siva.sh/siva-purana/saturda-samhita/15/55

अग्नीश्वरस्य भक्तानां न भयं विद्युदग्निभिः ।। अग्निमांद्यभयं नैव नाकालमरणं क्वचित् ।। ५५ ।।

sanskrit

The devotees of Agnīśvara need not fear lightning and fire. They will never suffer from impaired digestion or premature death.

english translation

agnIzvarasya bhaktAnAM na bhayaM vidyudagnibhiH || agnimAMdyabhayaM naiva nAkAlamaraNaM kvacit || 55 ||

hk transliteration by Sanscript