《史记·十二本纪·秦本纪》
二年，开始设丞相，樗里疾、甘茂分别任左丞相和右丞相。
二年，初置丞相，樗里疾、甘茂为左右丞相。
In the second year, he began to set up the prime minister, and Chulijie and Gan Mao served as the left and right prime ministers respectively.