《资治通鉴·唐纪·唐纪七十五》
唐昭宗向李学习写作文章，崔昭纬怕李做了宰相，会分去他的权力，因而指使刘崇鲁出来阻挠。
上师溪为文，崔昭纬恐溪为相，分己权，故使崇鲁沮之。
Tang Zhaozong learned writing from Li. Cui Zhaowei worried that Li might take away his power if becoming the prime minister, so he instructed Liu Chonglu to obstruct him.