וַיְהִ֖י גְּב֣וּל נַחֲלָתָ֑ם צָרְעָ֥ה וְאֶשְׁתָּא֖וֹל וְעִ֥יר שָֽׁמֶשׁ׃
And the border of their inheritance was Zorah, and Eshtaol, and Ir-shemesh;
Rashi on Joshua
Tzoroh, Eshtaeil. These were cities in the portion of Yehudah, and the lot of Bnei Don fell near them.