Natyashastra
कटिच्छिन्नं तथा चैव भवेत्तु गतिमण्डले । समपादं प्रयुज्याथ परिच्छिन्नं त्वनन्तरम् ॥ २१२॥
The waist should be cut off in the circle of movement. Then, after applying the even-footed stance, the circumscribed movement should follow.
english translation
kaTicchinnaM tathA caiva bhavettu gatimaNDale । samapAdaM prayujyAtha paricchinnaM tvanantaram ॥ 212॥
hk transliteration by Sanscript