《史记·十二本纪·秦本纪》
四十七年，秦攻打韩的上党郡，上党郡投降赵国，秦又攻打赵，赵国发兵迎击秦，两军相持不下。
四十七年，秦攻韩上党，上党降赵，秦因攻赵，赵发兵击秦，相距。
In the 47th year, Qin attacked Shangdang County of Han, which surrendered to Zhao. Qin then attacked Zhao. Zhao sent troops to fight Qin, but the two armies were evenly matched.