Astanga Hrudaya
सन्धुक्षितः समानेन पचत्यामाशयस्थितम्। औदर्योऽग्निर्यथा बाह्यः स्थालीस्थं तोयतण्डुलम्॥५६॥
then the audaryagni (jatharagni -digestive fire) activated by Samanavata cooks the food present in the Amasaya (stomach) just like external fire cooks the rice and water kept in the pot
english translation
sandhukSitaH samAnena pacatyAmAzayasthitam। audaryo'gniryathA bAhyaH sthAlIsthaM toyataNDulam॥56॥
hk transliteration by Sanscript