There is no problem with it if the mosque is not decorated with gold and the picture of living creatures and on the condition that it does not lead to extravagance and the wasting of resources.
There is no issue with it if it doesn’t disturb the worshippers and it doesn’t reduce the place for performing prayers and it is a necessity for the mosque.
It is not permissible based on the obligatory precaution; however you can open a door from one mosque to the other.
This is not permissible, but it is permissible to sell them and use the money for other needs of the mosque.
It is not permitted, but if the person who devoted the land for the mosque has allowed it, it will be permissible. However, there is no issue with constructing things like libraries in the basement of the mosques.
There are some limitations for women and sometimes for men for entering mosques; however, there are much fewer limitations for entering hussainiyyahs. Of course one will be granted a much greater reward for performing prayer in the mosque compared to a husainiyyah and this is why both kinds of building are constructed.
If rows of women are behind men there is no need for a curtain but if they are beside each other the obligatory precaution demands that a curtain separates them.
Performing these acts in the mosque is not prohibited and there is no need for the permission of the religious authority. However, attending to worldly acts in the mosque is considered to be makrūh and if these acts disturb the worshippers in the mosque they are prohibited.
The obligatory precaution demands that infidels be prevented from entering mosques except when they intend to research about Islam and like that.
About mosques that are situated in the middle of streets, there is no way that they can be demolished, both because they are mosques and because the property on which they have been built has been devoted by someone to the mosque. Thus anyone who demolishes such a mosque should pay the price for that by building another mosque or repairing other mosques. In fact, this is an example of wasting the property itself and until there is no necessity, destroying a mosque is strictly impermissible. As regards desolate mosques in deserts and desolate villages, they should be kept in a way that they are not desecrated.
Demolishing a mosque is not permissible but if it collapses itself it is permissible to use its materials to rebuild the mosque of that village or other places.
If it is possible, rent the land for the purpose of building the mosque from its custodian, and if there is no custodian then rent it from the religious authority and some of trusted people of that neighborhood need to sign that contract in order not to be forgotten. So, each year the rent that is paid must be used for holding mourning ceremonies for Imam Husayn (‘a). Moreover, the duration of the rental agreement should be specified and limited so that it can be renewed after the expiration of that period.
According to the Islamic law, in order to be properly covered, women must cover all of the body except the face and hands. Furthermore, some coverings, such as wigs, that are worn as ornaments are not enough. Similarly, clothes that are considered to be ornamental clothes are not enough. Proper cover for men, on the other hand, includes clothes that cover those parts of the body that are commonly covered by Muslims. Therefore covering the head, the hands, and arms (in short-sleeve shirts) and the like is not obligatory for men.
There is no issue with this if the bag is carried with them. Furthermore, if the body is contaminated they should wash it if it is not too difficult for them, and if it is too difficult for them to wash their body, they can perform their prayer in whatever state they are in.
