《宋史·本纪·卷一》
宣祖年轻时十分晓勇，擅长骑马射箭，在赵王王镕帐下供职，为哑拜立领五百名骑兵在黄河沿岸增援后唐庄宗立有战功。
宣祖少骁勇，善骑射，事赵王王镕，为镕将五百骑援唐庄宗于河上，有功。
Xuanyu was very brave in his youth. He was skilled at horse riding and archery and served in Zhao Wang's palace. He led 500 calvaries to aid Emperor Li Cunxu of Later Tang in battles along the Yellow River and made military achievements.