Natyashastra
भवेदतिजगत्यान्तु सा ध्रुवा परिवर्तनी । वार्तिकेन तु मार्गेण वाद्येनानुगतेन च ॥ ८९॥
It would be the fixed revolution at the very end, following the path of the commentary and accompanied by the instrument.
english translation
bhavedatijagatyAntu sA dhruvA parivartanI । vArtikena tu mArgeNa vAdyenAnugatena ca ॥ 89॥
hk transliteration by Sanscript