《资治通鉴·唐纪·唐纪十七》
刘仁轨说： 我看这两人都忠勇有谋略，注重信义；只是前次错投奔了人，现在正是他们感激立功的时候，不必怀疑。 
仁轨曰： 吾观二人皆忠勇有谋，敦信重义；但向者所托，未得其人，今正是其感激立效之时，不用疑也。 
Liu Rengui said, "I think these two men are both loyal and resourceful, and they value trust; they just made the mistake of following the wrong person before. Now is the time for them to show their gratitude and make amends, so there is no need to doubt them.