《北史·列传·卷四十七》
宇文泰感叹他的忠诚，说： 人最宝贵的只有生命，李穆却轻视自己的生命救我，爵位玉帛，都不足以报答他。 
周文叹其忠节，曰： 人所贵唯命，穆遂轻命济孤，爵位玉帛，未足为报。 
Yuwentai was deeply impressed by his loyalty, and said: All that a person cares about is their own life, Li Mu took his own life lightly to save mine, all the rewards and titles cannot repay him. 