Natyashastra
प्रावेशिकीनां जातीनामुद्घतानां निबोधत पङ्क्तिस्त्रिष्टुप्सजगती तथाऽतिजगती पुनः । शक्वरी चेति निर्दिष्टा उद्घतानां तु जातयः ॥ ३८॥
Now understand the classes of metres prescribed for the Prāveśikī Dhruvās of energetic (udghāta) characters. These are Paṅkti, Triṣṭubh, Jagatī, Atijagatī and Śakvarī, which are declared to be the classes applicable to such energetic types.
english translation
prAvezikInAM jAtInAmudghatAnAM nibodhata paGktistriSTupsajagatI tathA'tijagatI punaH । zakvarI ceti nirdiSTA udghatAnAM tu jAtayaH ॥ 38॥
hk transliteration by Sanscript