Negative commandment · Lo Ta’aseh #169 of 613
For the tribe of Levi not to take a portion of Eretz Yisrael
שלא ייקח כל שבט לוי חלק בארץ
The verse · Devarim 18:2
וְנַחֲלָה לֹא־יִהְיֶה־לּוֹ בְּקֶרֶב אֶחָיו ה׳ הוּא נַחֲלָתוֹ כַּאֲשֶׁר דִּבֶּר־לוֹ
“Therefore shall they have no inheritance among their brethren: the Lord is their inheritance, as he has said to them.”
The Rambam’s words
For the tribe of Levi not to take a portion of Eretz Yisrael, as [Deuteronomy 18:2] states: "He shall not receive an inheritance."
שלא ייקח כל שבט לוי חלק בארץ, שנאמר "ונחלה לא יהיה לו" (דברים יח,ב).
Why · Sefer HaChinuch #504
That the tribe of Levi not inherit in the Land of Israel
“It is from the roots of the commandment [that it is] so that all of the involvement of this tribe be in the service of G-d, blessed be He, and that they need not work the land.”
Who & when
“And this commandment is practiced by the Levites at the time when the Land of Israel is in its inhabitation.”
Where in the Mishneh Torah
Hilchot Sabbatical Year and the Jubilee הלכות שמיטה ויובל