Natyashastra
आद्यो भ्रमरकः कार्यो वामश्चैवाड्डितो भवेत् । कार्यस्त्रिकविवर्त्तश्च शकटास्यश्च दक्षिणः ॥ ४७॥
The initial movement of the bee should be performed, and the left side should be in a retreating motion. The movement of the triangle should be executed, and the right side should be in the position of the cart's mouth.
english translation
Adyo bhramarakaH kAryo vAmazcaivADDito bhavet । kAryastrikavivarttazca zakaTAsyazca dakSiNaH ॥ 47॥
hk transliteration by Sanscript