This article provides information about the water sources of the Central Asia - seas, lakes and rivers, according to the information given in the work "Kitab al-garayib Funun wa mulah al-Uyun", authored by an unknown scientist - a geographer, who lived in the XI century in Egypt. The article also gives the characteristics of the most important water sources in the region: the Caspian Sea, Issikule, the Aral Sea, the Amu Darya, Syr Darya and flows, as well as cities and centers of the region.