《宋史·列传·卷五十四》
等他们不停地请求，先皇要将德明的弟弟留作人质然后才许可他们，这是用他们难以同意的事，来杜绝他们的念头。
及请之不已，追德明弟入质而许之，是则以彼难从之事，杜其意也。
When they continued to ask, the late emperor requested to keep Deming's younger brother as a hostage before allowing them, which is something they could hardly agree to, so as to get rid of their idea.