《宋史·本纪·卷三十九》
十一月初一，派遣聂子述出使金国祝贺正旦，刑部侍郎刘抓等和太学生上书议论不能如此，没有得到回答。
十一月辛酉朔，遣聂子述使金贺正旦，刑部侍郎刘龠等及太学诸生上章言其不可，不报。
On the first day of the eleventh month, Nie Zishu was sent as an envoy to the Jin Kingdom to congratulate the New Year, but the Ministry of Justice servant Liu Zuo and other imperial students submitted a memorial to argue against this, but no reply was received.