Shiva Purana
उत्तरे कुरवश्चैव यथा वै भारतं तथा॥ नवसाहस्रमेकैकमेतेषां मुनिसत्तम ॥ १० ॥
In the north are the Kurus as well. O excellent sage, the extent of each of these, as in the case of Bharata, is nine thousand Yojanas.
english translation
uttare kuravazcaiva yathA vai bhArataM tathA॥ navasAhasramekaikameteSAM munisattama ॥ 10 ॥
hk transliteration by Sanscript