《辽史·列传·卷十六》
现有中京，位于四方之正中，前来朝觐的人各得其所，应该在中京举行。 
今中京四方之极，朝觐各得其所，宜中京行之。 
Now there is the central capital, which is located in the center of the four directions, and those who come to pay homage will get their place, and it should be held in the central capital.