These essential requirements are...
These essential requirements are: (i) taharah (specified Islamic way of purification), (ii) time, (iii) dress, (iv) place, and (v) Qiblah. These prerequisites have been explained in detail here.
(i) TAHARAH One who recites salat should be tahir; that is, he should recite salat as per the requirements, viz: by having wudu' (statutory ablution according to Islamic Shari'ah) before salat, or by wajib ghusl (taking bath according to the Islamic Shari'ah) or by tayammum (statutory Islamic ablution with soil, sand, etc) and also his body and dress should not be polluted with najasah. NAJIS SUBSTANCES There are several substances which are najis (inherently impure). They.
are as follows: First and Second: The urine and faeces (The outlet of urination must be made tahir only by water, but the outlet of faeces can be washed with water or cleaned with three pieces of stone and the like provided the faeces have not exceeded the outlet of defecation; otherwise, it will not be cleaned by anything other than water.
It should be reminded that if faeces are not cleaned by three pieces of stone, more pieces of stone can be used to clean the outlet thoroughly) of animals whose meat is haram for eating and whose blood gushes out, meaning the animals whose blood will gush out if their blood vessels are cut, such as cats, foxes, rabbits, etc. If the flesh of chicken or birds or animals has become haram for eating due to their eating faeces, then the urine and faeces of such birds or animals are also najis.
Third: The carcass of an animal whose blood gushes out (if its blood vessels are cut) whether its flesh is halal or haram for eating. But some parts of the carcass, such as its wool, hair, and nails which are soulless, are tahir. Fourth: The blood of an animal whose blood gushes out (if its blood vessels are cut) whether its meat is halal or haram for eating. Fifth and Sixth: All parts of the body of wild dogs and pigs, even their hair, are najis.
Seventh: Wine and anything which intoxicates a man and is basically in liquid form. Eighth: Beer. MUTAHHIRAT (PURIFIERS) Anything which purifies (and makes tahir) najis substances is called a mutahhir (purifier which purifies a najis). Mutahhirat are as follows: (i) Water is a mutahhir which makes tahir all najis substances provided that the water is mutlaq (pure). Thus mudaf (mixed) water, such as the juice of watermelon and rose-water are not mutahhirat and do not make tahir the najasah.