Natyashastra
विच्युतश्च सशब्दश्च कार्यो निर्भत्सनादिषु । ताले विश्वसने चैव शीघ्रार्थे संज्ञितेषु च ॥ १२३॥
It should be moved with a sound to represent rebuke, beating time, inspiring confidence, quickness, and making signs.
english translation
vicyutazca sazabdazca kAryo nirbhatsanAdiSu । tAle vizvasane caiva zIghrArthe saMjJiteSu ca ॥ 123॥
hk transliteration by Sanscript