Astanga Hrudaya
शीतेन कोपमुष्णेन शमं स्निग्धादयो गुणाः। शीतेन युक्तास्तीक्ष्णाद्याश्चयं पित्तस्य कुर्वते॥२०॥
Qualities that cause Chaya, Kopa and Shama of Vata –Hot along with dryness, movement, etc causes Vata Chaya. Coldness along with dryness causes Kopa. Snigdha (oilyness, unctuousness) and other qualities- Guru (heavy), Usna (hot) , pichila (stickiness), sthira (stability) etc. associated with hotness bring about its Shamana of Vata. Qualities that cause Chaya, Kopa and Shama of Pitta - Teekshna (piercing, strong) and other qualities- dryness, lightness, etc associated with cold cause Chaya- mild increase of Pitta, The above qualities associated with hot, cause Kopa – profound increase of Pitta.
english translation
zItena kopamuSNena zamaM snigdhAdayo guNAH। zItena yuktAstIkSNAdyAzcayaM pittasya kurvate॥20॥
hk transliteration by Sanscript