Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.
Ruling 879. In the sacred law of Islam, it has been highly advised to perform prayers in a mosque. The best of all mosques is Masjid al-Ḥarām, and after that the Mosque of the Prophet (Ṣ), and after that the Mosque of Kufa, and after that the al-Aqsa Mosque, and after that the jāmiʿ mosque (132) of every town, and after that one’s local mosque, and after that a mosque in the bazaar.
Ruling 880. It is better that women perform their prayers in a place where it is more likely that they will not be seen by those who are not maḥram to them, whether that place be at home, in a mosque, or somewhere else.
Ruling 881. Performing prayers in the shrines (ḥarams) of the Infallible Imams (ʿA) is recommended; indeed, it is better than performing them in a mosque. It has been reported that a prayer in the sacred shrine of His Eminence, the Commander of the Faithful [Imam ʿAlī] (ʿA), is equal to 200,000 prayers.
Ruling 882. It is recommended to go to a mosque frequently, and to go to a mosque that does not have people performing prayers there. Furthermore, it is disapproved for the neighbours of a mosque to perform prayers in any place other than in the mosque without a legitimate excuse.
Ruling 883. It is recommended that one should not sit to eat with someone who does not attend a mosque, nor should one seek his advice on matters, be his neighbour, take his daughter in marriage, or give him a daughter in marriage.