Natyashastra
ततश्च वस्तुकं कार्यमपरान्तकशाखया । यथाक्षरेण कार्यं तु शीर्षकं पञ्चपाणिना ॥ ३२५॥
Then the Vastuka should be performed with the Aparantaka branch. Its Shirsaka (concluding portion) should be rendered according to the syllabic measure and executed with the five-beat time measure (panchapani-tala).
english translation
tatazca vastukaM kAryamaparAntakazAkhayA । yathAkSareNa kAryaM tu zIrSakaM paJcapANinA ॥ 325॥
hk transliteration by Sanscript