Natyashastra
पुनस्तेनैव योगेन वृश्चिकं सम्प्रयोजयेत् । निकुट्टकं तथा चैव सव्यासव्यकृतं क्रमात् ॥१९८॥
Again, using the same technique, one should perform the scorpion gesture, as well as the nikuttaka, alternating in a clockwise and counterclockwise sequence.
english translation
punastenaiva yogena vRzcikaM samprayojayet । nikuTTakaM tathA caiva savyAsavyakRtaM kramAt ॥198॥
hk transliteration by Sanscript