Astanga Hrudaya
अन्नस्य पक्ता पित्तं तु पाचकाख्यं पुरेरितम्। दोषधातुमलादीनामूष्मेत्यात्रेयशासनम्॥४९॥
Jatharagni fire in the stomach and duodenum which aids digestion of food: Pacaka pitta, as described earlier (in chapter 12 of sutra-sthana) is the one that cooks (digests) the food; Atreya proclaims that there is usma (heat), in (each one of) the dosa, dhatu and mala
english translation
annasya paktA pittaM tu pAcakAkhyaM pureritam। doSadhAtumalAdInAmUSmetyAtreyazAsanam॥49॥
hk transliteration by Sanscript