וַיַּזְעֵ֨ק סִֽיסְרָ֜א אֶת־כָּל־רִכְבּ֗וֹ תְּשַׁ֤ע מֵאוֹת֙ רֶ֣כֶב בַּרְזֶ֔ל וְאֶת־כָּל־הָעָ֖ם אֲשֶׁ֣ר אִתּ֑וֹ מֵחֲרֹ֥שֶׁת הַגּוֹיִ֖ם אֶל־נַ֥חַל קִישֽׁוֹן׃
And Sisera gathered together all his chariots, even nine hundred chariots of iron, and all the people that were with him, from Harosheth-goiim, unto the brook Kishon.
Rashi on Judges
From Charoshes Hagoyim to Kishon stream. He mobilized them to proceed to the stream of Kishon from Charoshes Hagoyim where he was stationed.
Radak on Judges
From Haroshet-hagoyim: We explained this above (Radak on Judges 4:2).