Astanga Hrudaya
अतश्च विपरीतत्वात्सम्भवत्यपि नैव सा। विवक्ष्यते रसाद्येषु, वीर्यं गुर्वादयो ह्यतः॥१६॥
Why Rasa and Others are not called as Viryas? - because these are opposite to the 4 reasons mentioned above,
english translation
atazca viparItatvAtsambhavatyapi naiva sA। vivakSyate rasAdyeSu, vIryaM gurvAdayo hyataH॥16॥
hk transliteration by Sanscript