Natyashastra
रेचितौ विप्रकीर्णौ च करौ वृश्चिकरेचितम् । बाहुशीर्षाञ्चितौ हस्तौ पादः पृष्ठाञ्चितस्तथा ॥ १०७॥
Vṛścikarecita—assuming the Vṛścika-karaṇa, the two hands in the form of a Svastika gradually to be Recita and to show Viprakīrṇa gesture.
english translation
recitau viprakIrNau ca karau vRzcikarecitam । bAhuzIrSAJcitau hastau pAdaH pRSThAJcitastathA ॥ 107॥
hk transliteration by Sanscript