《金史·列传·卷三十一》
况你国曾经自己说过，叔父侄子与君臣父子相差不远，如能依应称臣，即同意在江、淮之间取中为界。
况彼国尝自言，叔父侄子与君臣父子略不相远，如能依应称臣，即许以江、淮之间取中为界。
Also, you have said before that uncles, nephews, and monarchs and their subjects are close descendants, so if you are able to submit and become subjects, we will consider the middle point between Jiang and Huai to be the boundary.