Natyashastra
सन्निपातस्तथा ते च कलाद्वादशकं भवेत् । एषतो वापविक्षेपव्यवधानश्च पण्डितैः ॥ ५०॥
The combination (of all finger movements) is said to make up twelve kalās (fractions of a tāla); Thereafter come the withdrawal, the spreading, and the pause—according to the learned.
english translation
sannipAtastathA te ca kalAdvAdazakaM bhavet । eSato vApavikSepavyavadhAnazca paNDitaiH ॥ 50॥
hk transliteration by Sanscript