《周书·列传·卷四十七》
置公宇文护被诛杀之前，他手持一大瓠，到了宇文护的大宅门，将其打破。
晋公护未诛之前，曾手持一大瓠，到护第门外，抵而破之。
Mr. Zhigong was executed before Yuwenhu had been killed. He held a big gourd and went to Yuwenhu's mansion gate, and then broke it.