《北齐书·本纪·卷八》
观察齐国全盛的时候，环绕远方的阻隔之地，西边包容了汾、晋，南面到了长江、淮水，向东直到海边，向北逐渐扩展到沙漠，六国的地方，我方得到了其中的五个，九州的辖界，他方分到了四个。
观夫有齐全盛，控带遐阻，西苞汾、晋，南极江、淮，东尽海隅，北渐沙漠，六国之地，我获其五，九州之境，彼分其四。
Observing the Qi State at its peak, the surrounding distant barriers included Fen and Jin in the west, the Yangtze and Huai Rivers in the south, the sea to the east, and the desert gradually expanding to the north. Of the Six States, our side occupied five, and of the nine regions, the other side occupied four.