The Compendium of Caraka 3.1.3

3.1.3

iha khalu vyādhīnāṃ nimittapūrvarūparūpopaśayasaṃkhyāprādhānyavidhivikalpabalakālaviśeṣānanupraviśyānantaraṃ& &doṣabheṣajadeśakālabalaśarīrasārāhārasātmyasattvaprakṛtivayasāṃ mānamab ahitamanasā yathāvajjñeyaṃ bhavati bhiṣajā, &doṣādimānajñānāyattatvāt kriyāyāḥ/

Here indeed, after having thoroughly examined the specific causes, premonitory symptoms, symptoms, therapeutic suitabilities, enumeration, predominance, varieties, fractional distributions, strengths, and times of diseases, the physician with an attentive mind must subsequently ascertain accurately the measure of the doshas, medicines, place, time, strength, body, tissue excellence, diet, suitability, mental constitution, constitution, and age, because treatment depends upon the knowledge of the measure of doshas and the like.