《旧唐书·列传·卷四十二》
不久，他调任黄门侍郎，代宰相。萧至忠曾上疏论析时政，道：
寻转黄门侍郎、同中书门下平章事。至忠上疏陈时政，曰：
Not long after, he was transferred to be the Minister of the Department of Imperial Household, acting as the Prime Minister. Xiao Zhizhong once memorialized and analyzed the state of affairs, saying: