What is obligatory on a woman to do in order to be a Muslim woman who firmly adheres (to her religion)?
It is obligated on a person- man and woman- to enter into the fold of Islaam. Testify that none has the right to be worshipped except Allaah and that Muhamad is the Messenger of Allaah; establish the five daily prayers; pay the Zakat; fast during the month of Ramadhaan and perform the hajj if able to do so and has the means. She must affirm and believe in the pillars of Imaan, and they are: Belief in Allaah; belief in Allaah’s Angels; belief in Allaah’s Books; belief in Allaah’s Messengers; belief in the hereafter and belief in Qadr –its good and evil. She should fulfill the remaining obligations and keep away from the forbidden (deeds). So by way this she becomes a true Muslim.
[Fataawaa Al-Lajnah Ad-Daa’imah 11/17]