《新唐书·列传·卷十六》
突厥归降后，下诏商议安定边防的办法。彦博奏请像汉代安置归降匈奴族人于五原塞那样，用他们守边作为国家的屏障，与魏征当廷争辩，魏征争辩不胜，天子最终接受了彦博的提议。
突厥降，诏议所以安边者，彦博请如汉置降匈奴五原塞，以为捍蔽，与魏徵廷争，徵不胜其辩，天子卒从之。
After the Turkic surrendered, an imperial edict was issued to deliberate on ways to stabilize border defenses. Yanbo proposed to follow the precedent of the Han Dynasty in resettling surrendered Xiongnu to guard the border as a shield for the state, and debated with Wei Zheng in the imperial court; Wei was defeated in the debate, and the Emperor ultimately accepted Yanbo's proposal.