· Saad Ibn Abi Waqas was the one who built the town of Kufa in Iraq during the rule of Umar ibn al-Khattab.
· Saad also fought under ʿUmar’s command against the Sassanid army at the Battle of al-Qādisiyyah and Battle of Nahāvand.
· He was later appointed governor of Kufa and Nejd during the caliphate of ʿUmar.