《资治通鉴·唐纪·唐纪五》
李世民把自己备用的战马送给他，让他跟随自己，于是各军大战，战场上尘土飞扬遮天蔽日。
世民给以副马，使从己。于是诸军大战，尘埃涨天。
Li Shimin gave him the spare warhorse and let him follow him, and all armies fought a fierce battle, and the battlefield was filled with dust.