Natyashastra
कटिच्छिन्नं च कर्तव्यं सम्भ्रान्ते नृत्तयोक्तृभिः । अपक्रान्तक्रमं कृत्वा व्यंसितं हस्तमेव च ॥ २४३॥
The waist should be cut off as prescribed by the confused dance movements. Having performed the unsteady sequence, the hand should be extended.
english translation
kaTicchinnaM ca kartavyaM sambhrAnte nRttayoktRbhiH । apakrAntakramaM kRtvA vyaMsitaM hastameva ca ॥ 243॥
hk transliteration by Sanscript