Astanga Hrudaya
नाभिरामाशयः स्वेदो लसीका रुधिरं रसः। दृक् स्पर्शनं च पित्तस्य, नाभिरत्र विशेषतः॥२॥
Place of Pitta Dosha - Nadhi – Umbilicus, Amashaya- stomach and small intestine, Sweda – sweat, Lasika- lymph, Rudhira – blood, Rasa- plasma, Druk – eye, and Sparshanam – skin, Special seat – Nabhi- region around the Umbilicus.
english translation
nAbhirAmAzayaH svedo lasIkA rudhiraM rasaH। dRk sparzanaM ca pittasya, nAbhiratra vizeSataH॥2॥
hk transliteration by Sanscript