《资治通鉴·唐纪·唐纪十三》
甲寅，太宗车驾行幸洛阳，命令房玄龄留守京师，右卫大将军、工部尚书李大亮为副留守。
甲寅，车驾行幸洛阳，以房玄龄留守京师，右卫大将军、工部尚书李大亮副之。
On Jia Yin, Emperor Taizong traveled to Luoyang by chariot, and ordered Fang Xuanling to remain in the capital, with General of the Right Guard and Minister of Works Li Daliang as deputy to remain in the city.