Deuteronomy 10:9
"Wherefore Levi hath no part nor inheritance with his brethren; the LORD is his inheritance, according as the LORD thy God promised him."
Cross References (ranked by relevance)
Ezekiel 44:28
And it shall be unto them for an inheritance: I am their inheritance: and ye shall give them no possession in Israel: I am their possession.
Joshua 14:3
For Moses had given the inheritance of two tribes and an half tribe on the other side Jordan: but unto the Levites he gave none inheritance among them.
Numbers 26:62
And those that were numbered of them were twenty and three thousand, all males from a month old and upward: for they were not numbered among the children of Israel, because there was no inheritance given them among the children of Israel.