《水经注·卷二十五》
泗水又往东南流经下邱县旧城西面，往东南流，近水流来注入。
泗水又东南径下邳县故城西。东南流，沂水流注焉。
The Sishui River then flows southeast and passes by the west of the old city of Xiaqiu County, and the Jinxi River flows southeast to merge with it.