Mr Abdulaziz went into exile after security agents raided his Dutsen Tanshi residence in the Bauchi metropolis on 24 January to execute a search warrant.
Ahmad Musa Jibril, 51, a Palestinian-American radical preacher from Michigan, has recently released videos online calling on young Muslims in the US to wage Jihad against the "infidel West" and urging mothers to raise their children as "martyrs."