Uthman ibn Sa'id al-Asadi
... that after death of Muhammad al-Mahdi's father, al-Mahdi appointed Uthman ibn Sa'id al-Asadi as his representative, making al-Asadi the main link between al-Mahdi and the Shia community?
... that after death of <a href="./Muhammad_al-Mahdi" id="mwAyg" rel="mw:WikiLink" title="Muhammad al-Mahdi">Muhammad al-Mahdi</a>'s father, al-Mahdi appointed <b id="mwAyk"><a href="./Uthman_ibn_Sa'id_al-Asadi" id="mwAyo" rel="mw:WikiLink" title="Uthman ibn Sa'id al-Asadi">Uthman ibn Sa'id al-Asadi</a></b> as his representative, making al-Asadi the main link between al-Mahdi and the <a class="mw-redirect" href="./Shia" id="mwAys" rel="mw:WikiLink" title="Shia">Shia</a> community?