عَنْ أُمِّ سَلَمَةَ رَضِيَ اللَّهُ عَنْهَا عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ قَالَ: ((خَيْرُ مَسَاجِدِ النِّسَاءِ قَعْرُ بُيُوتِهِنَّ))
It is narrated from Sayyida Umm Salama (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: The best mosques for women are the most secluded places in their homes.