וַחֲמִשָּׁ֨ה וְעֶשְׂרִ֥ים אֶ֙לֶף֙ אֹ֔רֶךְ וַעֲשֶׂ֥רֶת אֲלָפִ֖ים רֹ֑חַב יהיה [וְֽהָיָ֡ה] לַלְוִיִּם֩ מְשָׁרְתֵ֨י הַבַּ֧יִת לָהֶ֛ם לַאֲחֻזָּ֖ה עֶשְׂרִ֥ים לְשָׁכֹֽת׃
又有長兩萬五千、寬一萬的地，要歸給在殿中供職的利未人，作他們的產業，設二十間屋子。
Rashi
And twenty-five thousand rods in length, and ten thousand in width, you shall separate as another strip beside this one, south of this one, for the Levites. It is explained at the end of the Book that it is in the south. Twenty chambers shall be for the Levites in the perimeter of the Sanctuary in order to guard the House and to provide beauty, and the remainder of the strip shall be used for their own needs.