I Maccabees 10:49

49 And after the two kings had joined battle, Demetrius' host fled: but Alexander followed after him, and prevailed against them.

I Maccabees 10:49 In-Context

47 But with Alexander they were well pleased, because he was the first that entreated of true peace with them, and they were confederate with him always.
48 Then gathered king Alexander great forces, and camped over against Demetrius.
49 And after the two kings had joined battle, Demetrius' host fled: but Alexander followed after him, and prevailed against them.
50 And he continued the battle very sore until the sun went down: and that day was Demetrius slain.
51 Afterward Alexander sent ambassadors to Ptolemee king of Egypt with a message to this effect:

The Brenton translation of the Septuagint is in the public domain.