Ibrahim Taimi (may Allah have mercy on him) says: When the Muslims conquered Sawad (Iraq), they said to Umar (may Allah be pleased with him): "Distribute it among us." Umar (may Allah be pleased with him) said: "What will happen to the Muslims who come after you? I fear you will quarrel over water and fight among yourselves." Then Umar (may Allah be pleased with him) kept the people of Sawad on their lands and imposed jizya on them and kharaj on the land, and did not distribute the land.