《水经注·卷二十一》
汝水又往东南流，破水注入。破水上口在慎阳县老城旁的南破引入慎水。
汝水又东南，陂水注之，水首受慎水于慎阳县故城南陂。
The Ru River then turns southeast, where the Poshui flows into it. The upper part of the Poshui is connected to the Shen River in the south of the old town of the Shenyang County at the Ponao.