Charak Samhita
योगः सम्यक्प्रवृत्तिः स्यादतियोगोऽतिवर्तनम्। अयोगः प्रातिलोम्येन न चाल्पं वा प्रवर्तनम्॥३१॥
॥ Three types of purification according to its signs॥ The three types of outcome for Vamana and Virechana are: • Samyaka yoga indicates optimum action of elimination therapy • Ati-yoga indicates excess elimination • Ayoga indicates insufficient or no elimination
english translation
yogaH samyakpravRttiH syAdatiyogo'tivartanam। ayogaH prAtilomyena na cAlpaM vA pravartanam॥31॥
hk transliteration by Sanscript