《资治通鉴·唐纪·唐纪七十五》
还向朝廷内外人颁布诏书，说： 杜让能荐举邪恶的人而不用直朴的人，对人的喜好和憎恶都凭一时决定；他拿案狱官司做买卖，卖官卖爵，搜刮的钱财超过上万。 
复下诏布告中外，称 让能举枉错直，爱憎系于一时；鬻狱卖官，聚敛逾于巨万。 
He also issued an edict to everyone in and outside the imperial court: “Du Rangneng recommended evil people and did not use upright people; his likes and dislikes were decided on the spur of the moment. He used law cases and official appointments as a way to do business, selling official posts and titles, and amassing wealth of over ten thousand.