《资治通鉴·后周纪·后周纪一》
小门使谢彦，原本是马希萼的家奴，因为面目姣美得到马希萼宠幸，甚至与马希萼的妻妾同坐，依仗恩宠专横跋扈。
小门使谢彦颙，本希萼家奴，以首面有宠于希萼，至与妻妾杂坐，恃恩专横。
Xie Yan, a menial servant, was originally a servant of Ma Xeqiao. Because of his beautiful appearance, he was favored by Ma Xeqiao to the extent that he even sat together with Ma Xeqiao's concubines. He relied on his favoritism to become overbearing and tyrannical.