Natyashastra
सत्त्वं च विकृतं दृष्ट्वा श्रुत्वा च विकृतं स्वरम् । एषा स्त्रीणां प्रकर्त्तव्या नृणां चाक्षिप्तविक्रमा ॥ ७४॥
Seeing the distorted nature and hearing the distorted sound, this gait is to be performed by women and men with trembling steps.
english translation
sattvaM ca vikRtaM dRSTvA zrutvA ca vikRtaM svaram । eSA strINAM prakarttavyA nRNAM cAkSiptavikramA ॥ 74॥
hk transliteration by Sanscript