Az-Zahir began his career under the tutelage of his aunt, Sit al-Mulk (the lady of the state), also known as Sit al-Nasr, who was born in 359/980. During the first four years of az-Zahir's rule, the whole power was in the hands of his aunt. The personnel of Sit al-Mulk in the administration included both men and women. Abul Abbas Ahmad bin a-Maghribi, for example, served as her agent, who was a man of laudable character and had already served the mother of Sit al-Mulk in the same capacity. She also employed a slave girl of her mother, named Takarrub, was her confidante. She also served as her informant and handled the petitions submitted to her.
It is said that at the beginning of her regency, she managed to summon Abdul Rahman bin Ilyas bin Ahmad, the great-grandson of Imam al-Mahdi and the cousin of Imam al-Hakim, who had hatched rebellion against the Fatimids at Damascus, and is reported to have made his contact with the Jarrahids of Palestine to help him in his action. Sit al-Mulk made vizir Khatir al-Mulk, Ammar bin Muhammad write a letter to Abdul Rahman. He had been arrested in Cairo and imprisoned for some four years, then fell ill and died just three days before Sit al- Mulk herself died in 416/1026.
Thus, she is reported to have wielded great influence over the masses and directly participated in the state affairs, and remained quite influential until her death in 416/1026. Ibn Khallikan (8th vol., p. 130) writes that, "She showed exceptional ability, especially in legal matters, and made herself loved by the people."
During these four years, the chief ministers changed in quick succession and thus the administration could not acquire stability. After the death of Sit al-Mulk, the principle power passed into the hands of a trio from among the court nobles, who paid daily visit to the Imam for getting decision on all important matters.