An yi yakin Zumail a shekara ta 633 miladiyya a kasar Mesofotamiya (wace ce Iraki a yanzu).Wata babbar nasara ce da musulmi suka yi a wannan yanki.Cikin dare larabawa musulmi sun kai hari kan sojojin kiristoci da larabawa masu biyayya ga daular Sasania daga bangarori uku.Dakarun Nasara da Larabawa sun kasa jurewa harin ba-zata da musulmi suka kai musu, nan da nan suka watse amma suka kasa tserewa daga fagen fama, suka kuma zama ruwan dare a wani hari na bangarori uku na sojojin Khalid bn al-Walid.A Zumail kusan dukkanin sojojin Larabawa Kiristoci ne dakarun Khalid suka kashe.Waɗannan yaƙe-yaƙe sun kawo ƙarshen mulkin Farisa a Mesopotamiya, wanda a ƙarshe ya faɗa hannun Khalifancin Musulunci.