《孔子家语·曲礼子贡问》
说完话，孔子就退了出来。子贡问孔子说： 季康子没有病，而您却探问他的病，这合乎礼吗？ 
言终，孔子退，子贡问曰： 季孙不疾而问诸疾，礼与？ 
After the conversation, Confucius withdrew. Zi Gong asked Confucius: “Ji Kangzi was not sick, but you inquired about his illness. Is this in accordance with propriety?”