On Yuan Chwang's Travels in India, 629–645 A.D. v1.c7.s5.8

v1.c7.s5.8

An old name for the capital of this country is Su-hie (蘇薤), that is, Su-hak or Sugat, supposed by some to be for the Sogd of old writers.³ It is at least doubtful, however, whether this was the city which afterwards became known as Samarkand. In other Chinese writers Suhak was only one of the royal cities of this country.⁴ With these the capital has other names such as Aluti (阿祿迪) and Pi-t'an (畢闐) in the Ravani land (樂琡匿地).⁵