(That she said), "O Messenger of Allah ﷺ! We consider Jihad as the best deed. Should we not fight in Allah's Cause?" He said, "The best Jihad (for women) is Hajj-Mabrur (i.e. Hajj which is done according to the Prophet's tradition and is accepted by Allah).
أَنَّهَا قَالَتْ يَا رَسُولَ اللَّهِ تُرَى الْجِهَادَ أَفْضَلَ الْعَمَلِ أَفَلاَ نُجَاهِدُ قَالَ لَكِنَّ أَفْضَلَ الْجِهَادِ حَجٌّ مَبْرُورٌ