《元史·列传·卷七十一》
监察御史李扩巡视甘肃，金州百姓刘海延都之子元元，自称是流民王延禄，不是海延都的儿子，控告海延都掠夺他的财产，李扩信以为真，对其父施重刑，思谦弹劾他违反父子之天伦，破坏朝廷之法纪，办了他的罪。
监察御史李扩行部甘肃，金州民刘海延都，其男元元，自称流民王延禄，非海延都之子，告海延都掠其财。扩听之，以酷法抑其父。思谦劾扩逆父子之天，坏朝廷之法，遂抵扩罪。
The Inspector-General Li Kuo inspected Gansu. Liu Haiyandu’s son from Jinzhou, Yuanyuan, claimed that he was a refugee named Wang Yanlu and not Haiyandu's son. He accused Haiyandu of seizing his property. Li Kuo believed it to be true and imposed a harsh sentence on Yuanyuan's father. Siqian denounced him for violating the natural ethics between father and son and undermining the imperial laws, and accused him of committing crimes.