Natyashastra
खेटकेन च कर्तव्यः शिरःपरिगमो बुधैः । एवं प्रचारः कर्तव्यो भारते शस्त्रमोक्षणे ॥ ८०॥
The shield should also be moved around the head by the skilled performer. Thus, this movement should be executed in the Bhārata method of weapon use.
english translation
kheTakena ca kartavyaH ziraHparigamo budhaiH । evaM pracAraH kartavyo bhArate zastramokSaNe ॥ 80॥
hk transliteration by Sanscript