《水经注·卷一》
释氏《西域记》说：从蒲昌海开始，河水潜入地一下，然后从南方的积石山流出。
释氏《西域记》曰：河自蒲昌，潜行地下，南出积石。
The Buddhist's "Records of the Western Regions" says: Starting at the Puchang Sea, the He River flows under the ground and then flows out from the Jishi Mountain in the south.