《旧唐书·列传·卷二十二》
等到隋朝灭亡，宇文化及反叛杀君，世基任内史侍郎，也将被杀，世南抱持着世基痛号悲泣，请求让自己替兄受死，化及不接受他的请求，世南因此悲哀得瘦损异常，形销骨立，当时的人都称赞他的行为。
及至隋灭，宇文化及弑逆之际，世基为内史侍郎，将被诛，世南抱持号泣，请以身代，化及不纳，因哀毁骨立，时人称焉。
With the collapse of the Sui Dynasty, Yu Huaji rebelled and killed the emperor. As the Minister of Internal Affairs, Shi Ji was also going to be killed. Shi Nan hugged Shi Ji and cried out in grief, begging to die in place of his brother. Hua Ji did not accept his request, and as a result of this, Shi Nan became so sad that he lost a lot of weight and was just skin and bone. The people at the time praised his actions.