《资治通鉴·后周纪·后周纪一》
慕容彦超派遣使者入朝进贡，后周太祖顾虑他有疑惑恐惧，特赐诏书安慰他，说： 如今我的事情已到这个地步，不想多说，只望你能鼎力扶助，共同安定黎民。 
慕容彦超遣使入贡，帝虑其疑惧，赐诏慰安之，曰： 今兄事已至此，言不欲繁，望弟扶持，同安亿兆。 
Murong Yanchao sent an envoy to the court with tribute. Later Zhou Taizu, worried that he might feel doubtful and afraid, issued an edict of comfort to him, saying: My affairs have reached this point, and I will say no more. I only hope that you will help me, and together we can bring peace to the people.