《资治通鉴·宋纪·宋纪十》
文成帝命令详细调查，果然是那样。许宗之在城外南郊被斩首。
案验，果然，斩宗之于都南。
Emperor Wencheng ordered a detailed investigation, and it turned out to be true. Xu Zongzhi was beheaded in the southern suburbs outside the city.