▁( s ah ib ▁al - b ab ) ▁or , ▁occasionally , ▁as ▁" Ch ief ▁Chamber lain " ▁( h aj ib ▁al - hu j j ab ). ▁Furthermore , ▁the ▁writer ▁I bn ▁al - S ay r fi ▁mentions ▁the ▁existence ▁of ▁a ▁ha j ib ▁al - di wan , ▁task ed ▁with ▁prevent ing ▁una ut hor ized ▁visitors ▁and ▁pres erving ▁state ▁secre ts . ▁ ▁The ▁military ▁ha j ib ▁was ▁introduced ▁to ▁the ▁Lev ant ▁by ▁the ▁Sel ju ks , ▁and ▁this ▁model ▁was ▁followed ▁by ▁the ▁Z eng ids ▁and ▁the ▁A yy ub ids ▁after ▁them . ▁However , ▁the ▁use ▁of ▁the ▁title ▁ha j ib ▁for ▁chamber la ins ▁continued ▁in ▁Egypt ▁until ▁the ▁ 1 3 th ▁century . ▁ ▁Mag h reb ▁ ▁References ▁ ▁S ources ▁ ▁D . ▁S our del , ▁Le ▁viz irat ▁' A bb as ide , ▁Dam asc us ▁ 1 9 5 9 - 1 9 6 0 . ▁▁▁▁▁ ▁Category : A rab ▁culture ▁Category : G overn ment ▁of ▁the ▁Abb as id ▁C ali ph ate ▁Category : G overn ment ▁of ▁the ▁Um ay y ad ▁C ali ph ate ▁Category : G overn ment ▁of ▁the ▁Sam an id ▁Empire ▁Category : G overn ment ▁of ▁the ▁Bu y id ▁dynast y ▁Category : Em ir ate ▁of ▁C ór dob a ▁Category : C ali ph ate ▁of ▁C ór dob a