《辽史·本纪·卷二十》
诏令凡是世选之官，均从各部元老勋臣中择其有才能者擢用之。
诏世选之官，从各部耆旧择材能者用之。
According to the edict, any official with an inherited office should be appointed from the meritorious ministers and nobles of the various ministries.