Charak Samhita
ये तुल्यशीला ये भक्ता ये प्रिया ये प्रियंवदाः। तैर्नरः सह विस्रब्धः सुवयस्यैर्वृषायते ॥२३॥
who have similar conduct, who have lovable and pleasant disposition as well as speech, such a man gets increased virility.
english translation
ye tulyazIlA ye bhaktA ye priyA ye priyaMvadAH। tairnaraH saha visrabdhaH suvayasyairvRSAyate ॥23॥
hk transliteration by Sanscript