Charak Samhita
वातपित्तं प्रकुपितमतिमात्रं स्वहेतुभिः । परस्परं लब्धबलं दहद्गात्रं विसर्पति ॥३५॥
॥ Etio-pathogenesis and clinical features of vata-pitta dominant agni visarpa॥ When vata-pitta vitiated severely due to their respective etiological factors and strengthened mutually, spreads producing severe burning pain in the body.
english translation
vAtapittaM prakupitamatimAtraM svahetubhiH । parasparaM labdhabalaM dahadgAtraM visarpati ॥35॥
hk transliteration by Sanscript