Numbers 32:33

33And aMoses gave to them, to the people of Gad and to the people of Reuben and to the half-tribe of Manasseh the son of Joseph, the kingdom of Sihon king of the Amorites and the kingdom of Og king of Bashan, the land and its cities with their territories, the cities of the land throughout the country.

Joshua 12:1-6

Kings Defeated by Moses

1Now these are the kings of the land whom the people of Israel defeated and took possession of their land beyond the Jordan toward the sunrise, from bthe Valley of the Arnon to Mount Hermon, with all cthe Arabah eastward: 2 dSihon king of the Amorites who lived at Heshbon and ruled from Aroer, which is on the edge of the Valley of the Arnon, and efrom the middle of the valley as far as the friver Jabbok, the boundary of the Ammonites, that is, half of Gilead, 3and gthe Arabah hto the Sea of Chinneroth eastward, and in the direction of Beth-jeshimoth, to the Sea of the Arabah, the Salt Sea, southward to the foot of ithe slopes of Pisgah; 4and jOg
Septuagint; Hebrew the boundary of Og
king of Bashan, one of the remnant of lthe Rephaim, mwho lived at Ashtaroth and at Edrei
5and ruled over nMount Hermon and oSalecah and all Bashan pto the boundary of the Geshurites and the Maacathites, and over half of Gilead to the boundary of Sihon king of Heshbon. 6 qMoses, the servant of the Lord, and the people of Israel defeated them. And Moses the servant of the Lord rgave their land for a possession to the Reubenites and the Gadites and the half-tribe of Manasseh.

Joshua 13:8

The Inheritance East of the Jordan

8With the other half of the tribe of Manasseh
Hebrew  With it
the Reubenites and the Gadites received their inheritance, twhich Moses gave them, beyond the Jordan eastward, as Moses the servant of the Lord gave them:
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