Daniel 11:19 (ESV)

19 Then he shall turn his face back toward the fortresses of his own land, but he shall stumble and fall, and shall not be found.

Antiochus has to return to his own country as one who has suffered a major defeat. After this he will soon die. He dies after pillaging the temple of Bel in Elymais, in order to pay the Romans. The people of Elymais beat Antiochus to death.