Natyashastra
पुनश्च द्विकलस्तालः शम्या च द्विकला पुनः । ततश्चैककलस्तालसन्निपातः कलात्रये ॥ २७८॥
Then again there should be a Tāla of two Kalās, followed by a Śamyā of two Kalās. After that, there should be a Tāla of one Kalā, and a Sannipāta extending over three Kalās.
english translation
punazca dvikalastAlaH zamyA ca dvikalA punaH । tatazcaikakalastAlasannipAtaH kalAtraye ॥ 278॥
hk transliteration by Sanscript