Issue No.809- One should perform prayer in a place where he is able to perform the obligatory parts of the prayer. Therefore, prayer is void in a place which the ceiling is so low that one may not stand properly, or there is not enough space for performing rukū‘ and sajdah.
Issue No.792- The place where one can offer his prayer should bear the following conditions: First: being permissibleThe place on which a person offers his prayer should, as an obligatory precaution, be permissible. Therefore, if a person is offering prayer on a usurped property, a usurped carpet or bench, his prayer is void as an obligatory precaution. Similarly the prayer on a property which its benefits belong to someone else (like a rented house) without the beneficiary's consent, is void as an obligatory precaution. And the same rule applies when somebody's right is included in some property. For instance if a person made a will before his death that one-third of his property should be used in a particular manner, prayer cannot be offered in that property if the will has not been executed.
Issue No.805- If the place on which a person offers prayer is in motion in such a way that he cannot perform the acts of prayer in a normal way, his prayer is void. Therefore, there is no harm in performing prayer in ship and train, etc. as long as one can perform the acts of prayer correctly. If it is inevitable for a person on account of shortage of time or for some other excuses, to offer prayer on a ship or car, etc., and the direction of the qiblah frequently changes, he should, as much as possible, keep his body towards the qiblah and while turning to the direction of the qiblah, he should not recite anything.
Issue No.816- It is mustaḥab to offer prayers in the mosque, and great emphasis has been laid on doing so. Masjid al-Haram is superior to all the mosques, and after it, the order of priority is as follows:1- Al-Masjid al-Nabawi2- The great mosque of Kufa3- The mosque of Bait al-Maqdis. And then the main mosque of every city, the mosque situated in one’s locality, and the mosque of the bazaar have the priority, respectively.
Issue No.821- It is befitting not to offer prayer in the following places:Bathroom; salt marsh; facing a person who is either sitting or standing; facing an open door; on roads or sidewalks of streets provided that it does not cause inconvenience to others. )If it does, it is haram). Similarly, if one performs prayer facing fire or a lamp, in the kitchen, and at any place where there is a furnace, facing a well or a pit for waste water, and facing the picture or statue of living creatures, (unless it is covered) and at a place where there is a picture, even if it may not be placed in front of him; facing a grave, on the grave and in the graveyard.
Issue No.726- While offering prayer, a man should cover his private parts even if no one is looking at him, and it is better that he should cover his body from his navel down to the knees. It would be preferred to dress perfectly in the way he dresses before eminent people.
Issue No.727- A woman should cover her entire body while offering prayer, including her head and hair. It is not necessary for her to cover the [religious] radius of the face (the part of the face which is washed while performing wuḍū) or the hands up to the wrists, or the feet up to the ankles. Nevertheless, in order to ensure that she has covered the obligatory parts of her body adequately, She should also cover a little more of the face, wrists and ankles as an obligatory precaution.
Issue No.735- There are six conditions for the clothes of the person praying:1- It should be ṭāhir. 2- It should not be usurped, as an obligatory precaution. 3- It should not be made of the parts of a dead body. 4- It should not be made of a haram meat animal. 5&6- If a person who offers prayer is male, his clothes must not be made of pure silk or be embroidered with gold. The details of these will follow.
Issue No.736- If a person intentionally performs prayer with a najis body or clothes, his prayer would be void, even if the reason behind this was due to [his] failure in learning the rulings concerning it.
Issue No.746- The clothes that a person uses for offering prayer, as an obligatory precaution, should be permissible, and if he offers prayer with usurped clothes intentionally, even if a piece of thread or a button of it is be usurped, he should offer the prayer again. However, if he did not know that it was usurped, and offered prayer in it, his prayer would be correct. Similarly, if he knew that it was usurped but then forgot about it, and offered prayer with it, his prayer would be valid, provided that he himself is not the usurper. If he himself had usurped something and then forgot that he had usurped it and offered prayer with it, the obligatory precaution in this case, is to repeat the prayer.
Issue No.750 - The clothes with which a person offers prayer should not be made of the parts of the dead body of a blood gushing animal. And the obligatory precaution is that even if the clothes have been made with the parts of the dead body of a non-blood gushing animal (for example fish or snake), it should not be used while performing prayer.
Issue No.753- The clothes of a person who offers prayer should not be made out of the parts of the body of a haram meat animal. Hence, if one carries on himself even one hair of such an animal while performing prayer, his prayer would be void.
