Natyashastra
अस्यैव चाङ्गुलीभिरधोमुखप्रस्थितोत्थितचलाभिः । वायूर्मिवेगवेलाक्षोभश्चौघश्च कर्तव्यः ॥ २३॥
With the same hand, when the fingers are turned downward, moving up and down, it should represent the swift movement of wind, ocean waves striking the shore, and a rushing current.
english translation
asyaiva cAGgulIbhiradhomukhaprasthitotthitacalAbhiH । vAyUrmivegavelAkSobhazcaughazca kartavyaH ॥ 23॥
hk transliteration by Sanscript