Found in articles
maimami sambahyang subuh di Masjid Nabawi. ^ "Umar I | Muslim caliph".Encyclopedia Britannica. ^ Bonner, M. "Umar (I) b. al-K̲h̲aṭṭāb".Encyclopaedia of
God. Bloomsbury Publishing USA. ISBN 9781610691789. Walker, Adam, Abu Bakr al-Siddiq, in Muhammad in History, Thought, and Culture: An Encyclopedia of the