《资治通鉴·唐纪·唐纪十一》
侍御史马周也上奏疏认为： 尧、舜这样的父亲，还有丹朱、商均那样的儿子。
侍御史马周亦上疏，以为： 尧、舜之父，犹有硃、均之子。
Imperial historiographer Ma Zhou also submitted a memorial in which he opined that: Emperor Yao and Emperor Shun had been very wise leaders, but had had such sons as Dan Zhu and Shang Jun.