《辽史·列传·卷一》
幽州刘守光派韩延徽求援，韩不行跪拜礼，太祖发怒，扣留了他，让他牧马。
幽州刘守光遣韩延徽求援，不拜，太祖怒，留之，使牧马。
Liu Shouguang of Youzhou sent Han Yanhui to ask for help. Han did not kneel down to salute. Taizu was furious, detained him, and let him herd horses.