Shiva Purana

siva.sh/siva-purana/saturda-samhita/15/61

अग्निहोत्ररता विप्राः स्थापिता ब्रह्मचारिणः ।। पश्चानिवर्त्तिनोऽप्येवमग्निलोकेग्निवर्चसः ।। ६१।।

sanskrit

Brahmins performing Agnihotra regularly, Brahmacārins maintaining sacrificial fires, and those who stay amidst five fires become as splendrous as fire in the region of fire.

english translation

agnihotraratA viprAH sthApitA brahmacAriNaH || pazcAnivarttino'pyevamagnilokegnivarcasaH || 61||

hk transliteration by Sanscript