Praise be to Allah.
The Standing Committee for Issuing Fatwas was asked: Is it prescribed in sharee’ah that a woman should say the iqaamah when she is leading other women in prayer?
It is not prescribed for women to say the iqaamah for prayer, whether they are praying individually or one woman leads the others in prayer, just as it is not prescribed for them to say the adhaan.
Fataawa al-Lajnah al-Daa’imah, 6/84
Shaykh Ibn Baaz (may Allaah have mercy on him) was asked: Is it permissible for a woman to do the adhaan and iqaamah for prayer or not?
The shaykh replied:
It is not prescribed for women to pronounce the adhaan or iqaamah for prayer, rather that is for men. Neither the adhaan nor the iqaamah is prescribed for women, rather they should pray without the adhaan or the iqaamah.
Majmoo’ Fataawa wa Maqaalaat Mutanawwi’ah, 10/356.
And Allaah knows best.