《资治通鉴·隋纪·隋纪五》
春季，正月，癸亥朔，早晨，差三刻天亮时，有盗贼几十名，头戴白帽，衣穿白衣，焚着香，手持花，自称是弥勒佛，从建国门进入，看门的人都跪下叩头，接着这些人就夺取卫士的兵器，即将作乱。
春，正月，癸亥朔，未明三刻，有盗数十人，素冠练衣，焚香持华，自称弥勒佛，入自建国门，监门者皆稽首。
In spring, in the first month, on the day of Guihai at the beginning of the month, at dawn, about dozens of thieves, wearing white hats and white clothes, burning incense and carrying flowers, claimed to be Maitreya Buddha, and entered Jian'guo Gate. The gatekeepers knelt down and kowtowed. Then these people snatched the weapons from the guards, ready to start a riot.