4.741 http://mohammeds-koran.com/texts/hadith/sahih-muslim/4/4.741 http://mohammeds-koran.com/@@site-logo/Jihad_Sword_White_Background.png 4.741 Ibn Umar reported: The Messenger of Allah (may peace be upon him) had two Mu'adhdhins, Bilal and 'Abdullah b. Umm Maktum, who (latter) was blind.