What is the ruling on women going out for da'wah with their maharim in the "Masturah" group, which resembles the Tablighi Jama'at, and is it permissible for women of the town to participate with them?

Designating a specific number of days for Da’wah (invitation to Islam) is an innovation (bid’ah) if a religious virtue is ascribed to it. The going out and traveling of women for Da’wah, even with a mahram (unmarriageable kin), is an innovated matter and contradicts the woman's rightful place in her home. It is feared that this could be a gateway to evil. A woman's prayer in her home is better than her prayer in the mosque, even better than her prayer in the Prophet's Mosque (peace be upon him). Scholars, such as Al-Albani and Ibn Uthaymeen, have denounced women going out for Da’wah, citing the Almighty's words: "And abide in your houses" (Quran 33:33).