大唐西域記 1.42

1.42

赭時國，周千餘里。西臨葉河。東西狹、南北長。土宜氣序，同笯赤建國。城邑數十，各別君長，既無總主，役屬突厥。

The country of Che-shi is 1000 or so li in circuit. On the west it borders on the river Yeh. It is contracted towards the east and west, and extended towards the north and south. The products and climate are like those of Nu-chih-kien.
There are some ten towns in the country, each governed by its own chief; as there is no common sovereign over them, they are all under the yoke of the Tuh-kiueh. From this in a south-easterly direction some 1000 li or so, there is a country called Fei-han.