《资治通鉴·后梁纪·后梁纪二》
徐温认为金陵地势优越，战船聚集，于是自己以淮南行军副使兼领升州刺史，留驻广陵，任命他的养子元从指挥使徐知诰为州防遏兼楼船副使，前去治理州。
徐温以金陵形胜，战舰所聚，乃自以淮南行军副使领升州刺史，留广陵，以其假子元从指挥使知诰为升州队遏兼楼船副使，往治之。
Xu Wen believed that Jinling had excellent terrain and many warships. Therefore, he himself served as the deputy commander of Huainanxingjun and concurrently as the governor of Shengzhou. He stayed in Guangling and appointed his adopted son Yuan Cong as the commander of Zhoufan'e and deputy commander of Louchuan to govern the state.