《元史·列传·卷八十六》
至正三年，命文臣纂修辽金宋三史，右丞相脱脱以监修国史领都总裁，举张枢为本府长史，枢不接受。
至正三年，命儒臣纂修辽、金、宋三史，右丞相脱脱以监修国史领都总裁，辟枢本府长史，力辞不拜。
In the third year of the Zhizheng reign, he ordered civil servants to compile the histories of Liao, Jin and Song. The right prime minister Tuo Tuo was put in charge of supervising the compilation of the national history and was the head of the project. Zhang Shu was recommended by him to be the longshi of the office, but Shu declined.