Natyashastra
कुञ्चितं पादमुत्क्षिप्य त्र्यश्रमूरुं विवर्तयेत् । कटिजानुविवर्ताच्च भुजङ्गत्रासिता भवेत् ॥ ४२॥
Bhujaṅgatrasitā—one Kuñcita foot thrown up and the waist and the knee being turned round and the thigh ॥ of the remaining foot॥ to be turned round too.
english translation
kuJcitaM pAdamutkSipya tryazramUruM vivartayet । kaTijAnuvivartAcca bhujaGgatrAsitA bhavet ॥ 42॥
hk transliteration by Sanscript