《晋书·志·第十六章》
到平定吴国以后，有关官员又上奏说： 韶书说 王公以国为家，京城不应再有田地住宅。
及平吴之后，有司又奏： 诏书 王公以国为家，京城不宜复有田宅。
After Wu was pacified, the relevant officials submitted another memorial, which stated: The Book of Songs says, “Kings and dukes should take the state as their home.” There should be no fields or residences in the capital.