《汉书·志·五行志中之下》
当时庄公娶齐国的淫荡之女做夫人，娶来之后，与两个小叔子私通，所以才有蜚灾的出现。
是时，严公取齐淫女为夫人，既入，淫于两叔，故蜚至。
At that time Duke Zhuang married the licentious woman from Qi country, after marrying her, she had an affair with her two brothers-in-law, that’s why there was the “fei” disaster.