The Dawoodi Bohras belong to the former sect, and believe that owing to persecution Imam Type (the 21st Imam) went into seclusion and that an Iman from his line appear, it being their belief that an Iman always exists although at times he may be invisible to his believers, while in seclusion; that owing to the impending seclusion of the 21st Imam (Imam Tyeb) his predecessor, the 20th Imam, directed his Hujjat (a dignitary ranking next to an Imam), one Hurra tul Malaka, to appoint a Dai, a Mazoon (a dignitary next to a Dai) and a Mukasir (a dignitary ranking next to a Mazoon) to carry on the Dawal (mission) of the Imam so long as the Imam should remain in seclusion, and to take and receive from the faithful an oath of allegiance.