Natyashastra
कपोलस्य प्रदेशे तु कार्यं सम्यङ्निकुञ्चितम् अपविद्धं द्रुतं चैव तलसंस्फोटसंयुतम् ॥ २०७॥
The hand should be properly bent near the region of the cheek, then swiftly thrown outward, accompanied by the motion called Talasaṃsphoṭa.
english translation
kapolasya pradeze tu kAryaM samyaGnikuJcitam apaviddhaM drutaM caiva talasaMsphoTasaMyutam ॥ 207॥
hk transliteration by Sanscript