Charak Samhita
भवति चात्र- रसान् द्रव्याणि दोषांश्च विकारांश्च प्रभावतः। वेद यो देशकालौ च शरीरं च स[१] नो भिषक् ॥२६॥
[Summary] He is (or should be) our physician who knows the rasas, dravyas, dosha, disorders, place, time and body.
english translation