2 Chronicles 25:10-13

10 So Amaziah dismissed the troops who had come to him from Ephraim and sent them home. They were furious with Judah and left for home in a great rage.

11 Amaziah then marshaled his strength and led his army to the Valley of Salt, where he killed ten thousand men of Seir.

12 The army of Judah also captured ten thousand men alive, took them to the top of a cliff and threw them down so that all were dashed to pieces.

13 Meanwhile the troops that Amaziah had sent back and had not allowed to take part in the war raided Judean towns from Samaria to Beth Horon. They killed three thousand people and carried off great quantities of plunder.