Charak Samhita
तस्माद्व्याधीन् भिषगनुपहतसत्त्वबुद्धिर्हेत्वादिभिर्भावैर्यथावदनुबुद्ध्येत ॥१३॥
On the basis of these factors, physicians should properly diagnose a disease without any affliction in mind and intellect (i.e., without any prejudice or preconceived ideas).
english translation
tasmAdvyAdhIn bhiSaganupahatasattvabuddhirhetvAdibhirbhAvairyathAvadanubuddhyeta ॥13॥
hk transliteration by Sanscript