《宋史·列传·卷十七》
曹彬说 ：我的病不是药石能治好的，只要诸公诚心立誓，克城之日，不妄杀一人，就会自动痊愈。 诸将答应下来，一起焚香立誓。
彬曰： 余之疾非药石所能愈，惟须诸公诚心自誓，以克城之日，不妄杀一人，则自愈矣。 诸将许诺，共焚香为誓。
Cao Bin said: "My illness cannot be treated with medicine. I will get better as soon as all of you sincerely swear that you will not kill a single person when the city is captured." The generals all agreed and burnt incense to swear an oath.