《旧唐书·本纪·卷十二》
所以虽然有元帅、河中节度之大权，有太尉、中书令之俸禄，仍旧加以实封，可以追上皇室宗亲，臣下的荣宠，谁可以与李怀光相比？
故元帅、河中之权，太尉、中书之秩，仍加实封，爰及宗亲，人臣之荣，孰可为比？
Therefore, although he has the great authority of a military governor and the salary of a grand marshal and imperial secretary, I nevertheless bestowed on him a fiefdom, allowing him to rival the imperial clan in terms of wealth and status. Among my subjects, who can compare with Li Huiguang?