TT #118 · Parashas Shoftim · Third Aliyah · Passuk 18:01
The kohanim, the Leviim, the entire tribe of Levi, shall have no portion or inheritance with Yisrael; they shall eat the fire-offerings of the Eternal and His inheritance.
Torah Temimah points to Sifrei Devarim 163 / Chullin 130b area.
TT lemma: אִשֵּׁי ה׳ וְנַחֲלָתוֹ יֹאכֵלוּן.
Sefaria — Sifrei Devarim 163 / Chullin 130b area
English: ‘They shall eat the fire-offerings of the Eternal and His inheritance’ – these are the sanctified offerings of the Temple.
Derash identifying the ‘inheritance’ (Sifrei / Bavli) — the portion of Levi is the sacred food of the altar and related gifts.
In place of land, the kohanim and Leviim receive the fire-offerings and the sacred portions that Hashem has designated as their inheritance.