Charak Samhita
ये यथा चानुमानेन ज्ञेयास्तांश्चाप्युदारधीः। भावांस्त्रिरोगविज्ञाने विमाने मुनिरुक्तवान् ॥१४॥
By direct observation and inference, along with the methods prescribed in respective chapters for specific subject.
english translation
ye yathA cAnumAnena jJeyAstAMzcApyudAradhIH। bhAvAMstrirogavijJAne vimAne muniruktavAn ॥14॥
hk transliteration by Sanscript