《资治通鉴·唐纪·唐纪七十》
王处存下令军士系上白色丝绸头作为记号，但坊市无赖少年不少人也载上白丝头，照样掠人劫货，使长安城内一片混乱。
处存令军士首系白为号，坊市少年或窃其号以掠人。
Wang Chucun ordered the soldiers to tie white silk on their heads as a mark, but there were many hooligans in the city who also wore white silk heads, and they looted people and robbed goods, causing chaos in Chang'an City.