Charak Samhita
अथव्यवसायः- व्यवसायोनामनिश्चयः; यथा- वातिकएवायंव्याधिः, इदमेवास्यभेषजंचेति ॥४७॥
॥ 26. Vyavasaya (resolution)॥ Vyavasaya is resolution or firm decision, such as- this disease is certainly vataja and this is the medicament for this.
english translation
athavyavasAyaH- vyavasAyonAmanizcayaH; yathA- vAtikaevAyaMvyAdhiH, idamevAsyabheSajaMceti ॥47॥
hk transliteration by Sanscript