Natyashastra
वामः पृष्ठापसर्पी च दद्याद् भ्रमरकं तथा । स एवास्पन्दितः कार्यस्त्वेतद् भ्रमरमण्डलम् ॥ ४६॥
The left side should retreat and give the movement of the bee. This should be performed with a vibrating motion, forming the circle of the bee's movement.
english translation
vAmaH pRSThApasarpI ca dadyAd bhramarakaM tathA । sa evAspanditaH kAryastvetad bhramaramaNDalam ॥ 46॥
hk transliteration by Sanscript