Natyashastra
अञ्चितैर्वलितैर्हस्तैस्तलसङ्घट्टितैस्तथा । निकुट्टितं च कर्तव्यमूरूद्वृतं तथैव च ॥ २०९॥
The hands should be made with a swinging motion and in a curved shape, then the hand should be brought together in a clasping motion. The Nikuttaka should also be performed, followed by the raised thighs (Ūrūdvṛtta).
english translation
aJcitairvalitairhastaistalasaGghaTTitaistathA । nikuTTitaM ca kartavyamUrUdvRtaM tathaiva ca ॥ 209॥
hk transliteration by Sanscript