《资治通鉴·唐纪·唐纪七》
于是，他们暗中让好几个人以密封的奏章上奏皇帝，声称： 秦王身边的人们得知秦王前往洛阳的消息以后，无不欢喜雀跃。察看李世民的意向，恐怕他不会再回来了。 
乃密令数人上封事，言 秦王左右闻往洛阳，无不喜跃，观其志趣，恐不复来。 
So, they secretly asked several people to submit sealed memorials to the emperor, claiming: "When the people around King Qin learned that King Qin was going to Luoyang, they were all happy and jumping. Looking at Li Shimin’s intentions, I’m afraid he will never come back."