《资治通鉴·秦纪·秦纪一》
春申君问他超假的原因，他说： 齐国国君派人求娶我的妹妹，我陪那位使者饮酒，所以耽误了归期。 
春申君问之，李园曰： 齐王使人求臣之妹，与其使者饮，故失期。 
Chun Shen Jun asked him the reason for his late return. He said: "The King of Qi sent someone to ask for my younger sister's hand in marriage. I was drinking with the envoy, so I delayed my return."