《宋史·列传·卷十五》
第二天，皇帝对宰相说： 赵普对国家有功，朕先前与他同游，现在牙齿头发都衰落了，不能用枢务政事烦扰他，选择善地来安置他，因此作诗篇来表达我的本意。
翌日，谓宰相曰： 普有功国家，朕昔与游，今齿发衰矣，不容烦以枢务，择善地处之，因诗什以导意。
The next day, the emperor told the prime minister: Zhao Pu has rendered meritorious service to the country, I used to travel with him before, but now my teeth and hair are all grey, I shouldn't trouble him with national affairs, I will choose a good place for him to settle down and wrote this poem to express my intentions.