Reference: al-Muntaqaa min Fataawa Shaykh Saalih al-Fowzaan – Volume 3, Page 300, Fatwa No.442
Question: From that which is known is that the prayer of the woman inside her home is better than her praying in the masjid; So if she abandoned praying in al-Masjid al-Haraam (in Makkah) or al-Masjid an-Nabawee (in Madeenah) and [instead] prayed inside her home, would she be rewarded with the multiple reward for the prayer therein [as in al-Masjid al-Haraam and al-Masjid an-Nabawee]?
Response: As regards Makkah, then the multiple [prayer] reward is attained in all of the Haram (sacred area). So if a woman prayed inside her home in Makkah, then she has attained the multiple [prayer] reward in shaa.-Allaah. As for Madeenah, then the multiple [prayer] reward is specific to al-Masjid an-Nabawee, however, if the woman prayed inside her home in Madeenah in accordance with the statement of the Messenger (sal-Allaahu ‘alayhi wa sallam) then much good is anticipated for her, and she will be rewarded for her sincere intention and her love for [wanting to] pray in the Masjid of the Messenger (sal-Allaahu ‘alayhi wa sallam). And Allaah [alone] has the Complete knowledge [of all affairs].