Narrated Aisha (radiallaahu `anhaa):
I said, “O Allah’s Apostle (sallallaahu `alayhi wasallam)! Shouldn’t we participate in Holy battles and Jihad along with you?” He replied, “The best and the most superior Jihad (for women) is Hajj which is accepted by Allah.” ‘Aisha added: Ever since I heard that from Allah’s Apostle (sallallaahu `alayhi wasallam) I have determined not to miss Hajj.
Jihaad against the kuffaar by fighting is not obligatory for women, but they must make jihaad by calling others to the truth (da’wah) and teaching them about Islam, within the limits that will protect them and wearing the clothes that cover their ‘awrah. They should not mix with non-mahram men or speak in soft voices or be alone with non-mahram men. Allaah said concerning the wives of the Messenger of Allaah (peace and blessings of Allaah be upon him):
“And remember (O you members of the Prophet’s family), the Graces of your Lord), that which is recited in your houses of the Verses of Allaah and Al-Hikmah (i.e. Prophet’s Sunnah)” [al-Ahzaab 33:34]
It was reported that ‘Aa’ishah (may Allaah be pleased with her) said: I said, O Messenger of Allaah, do women have to do any kind of jihaad? He said, “Yes, they have to do the kind of jihaad in which there is no fighting: Hajj and ‘Umrah.” (Reported by Ahmad, 6/68; Ibn Maajah, 2/968).