《资治通鉴·唐纪·唐纪三》
于是每天有几百人献策上书，分类既很麻烦，也难以全部省阅，几天后，王世充就不再出宫。
于是献策上书者日有数百，条疏既烦，省览难遍，数日后，不复更出。
As a result, there were hundreds of people giving counsel and submitting petitions every day, making categorization quite difficult while also making it nearly impossible to read all of them. A few days later, Wang Shichong stopped leaving the palace.