kārttikaṁ tu naro māsaṁ
yaḥ kuryād eka-bhojanam
śūraś ca bahu-vīryaś ca
kīrtimāṁś ca sa jāyate

kārttikam-Kārttika; tu-indeed; naraḥ-person; māsam-month; yaḥ-who; kuryāt-does; eka-bhojanam-eating once; śūraḥ-a hero; ca-and; bahu-vīryaḥ-very powerful; ca-and; kīrtimān-glorious; ca-and; sa-he; jāyate-is born.

“A person who, for the entire month of Kārttika, eats only once a day becomes very famous, powerful, and heroic.”

– Kārtik Mahatmya Text 86