917. It is Haraam to make the floor, roof, ceiling, and inner walls of a Masjid Najis, and as when a person comes to know that any of these parts has become Najis, he should immediately make it Pak. And the obligatory precaution is that the outer part of the wall of a mosque, too, should not be made Najis. And if it becomes Najis, it is obligatory to remove the Nejasat; unless the Waghef (donor) of mosque has not considered it as a part of mosque.
918. If a person cannot make a mosque Pak, or needs help which is not available, then it is not obligatory for him to make it Pak. But, as an obligatory precaution, he must inform those who can make it Pak.
920. If a mosque is usurped and instead of it a house or something like that is built or it is made part of zoning plans or streets f village or city in a way that no longer a mosque can be built, rules of mosques do not apply there.
921. Placing the body of Mayyit in a mosque before performance of Ghusl, if it does not cause Nejasat in mosque or some kind of disrespect, has no harm; but it is better that the body is not placed there. However, after performance of Ghusl, it is permissible.
922. It is Haraam to make the precincts (Haraam) of the holy shrines of the Holy Prophet (ASW) and Imams (S) Najis, but if anyone of these precincts become Najis, and if its remaining in that state effects its sanctity, then it is obligatory to make it Pak. And the recommended precaution is that it should be made Pak, even if no desecration is involved.
923. If the mat or carpet of a Masjid becomes Najis, it should be made Pak, as an obligatory precaution. If the mat or carpet is ruined because of washing and cutting the Najis part is less harmful, it must be cut off and if the person who has caused the Nejasat cuts it, he/she must pay costs of damages.
924. It is Haraam to carry original Nejasat, such as blood and urine to a mosque, if it desecrates the mosque. Also, carrying anything which has become Najis (such as clothes and shoes which are Najis) to mosque, if it desecrates the mosque, is Haraam.
925. If a mosque is draped with black cloth or covered with a marquee in preparation of mourning procession or religious celebrations and the like, and they serve tea and food there, if these actions do not have any harmful effect on the mosque and if it does not harm those who com to pray, it is in order
926. The obligatory precaution is that a mosque should not be adorned with gold, and it should not be adorned with the pictures of men and animals who have life, but pointing lifeless things such as flowers and grass is Makrooh.
927. Even when a mosque is ruined, it is not permissible to sell it, or to make it a part of a property, or a road.
928. It is Haraam to sell doors, windows, and other things of a mosque, and if the mosque becomes dilapidated, those things should be used for the renovation of the same mosque. If they are not useful for that mosque, they should be used in any other mosque, and if they are not of any use for other mosques also, then they may be sold, and the proceeds should be used for that very mosque, if possible. If that is not possible, then it should be spent on the repairs of any other mosque.
929. Building a mosque and renovating a dilapidated mosque is Mustahab. And if a mosque is so ruined that it is not possible to repair it, then it can be demolished and rebuilt. In fact, a mosque which may not be in a bad state can be demolished for extension, to facilitate the needs of the people.
930. To keep a mosque clean and tidy, and to illuminate it, is Mustahab. And for a person visiting a mosque, it is Mustahab to apply perfume, and wear neat and good dress and to ensure that his clothes and body do not contain any Nejasat, and when entering the mosque, to put his right foot in first, and on exit, to put his left foot out first. Similarly, it is Mustahab that one should come to the mosque earlier than others, and leave it after they have departed.
931. It is Mustahab that when a person enters a mosque he should offer two Rakat prayers as gesture of greeting and respect to the mosque; but it will suffice if he offers any obligatory or Mustahab prayers.
932. It is Makrooh to sleep in a mosque, except when helpless, and to talk about worldly affairs, to engage oneself in some craft, and to recite poetry, which is not religiously instructive. It is also Makrooh to spit r throw phlegm or mucus from the nose, in a mosque, or to shout or look for a lost thing or raise ones voice, except for Adhan.
933. It is Makrooh to let children and insane persons enter a mosque, but if bringing children to mosque, does not cause inconvenience to others and at same time causes them to be interested in Namaz and mosque, then it is recommendatory (Mustahab).
934. For people who have eaten onion, garlic, and the like and their bad breath upsets others, it is Makrooh to go to mosque.