Natyashastra
कटिच्छिन्नं तथा चैव परावृत्ते प्रयोजयेत् । स्वस्तिकं करणं कृत्वा व्यंसितौ च करौ पुनः ॥ २२३॥
The waist should be bent, and the feet turned back. After assuming the Svastika posture, the hands should again be bent.
english translation
kaTicchinnaM tathA caiva parAvRtte prayojayet । svastikaM karaNaM kRtvA vyaMsitau ca karau punaH ॥ 223॥
hk transliteration by Sanscript