Issue No.21- Water is either mixed (muḍāf) or unmixed (muṭlaq). Water which is mixed with something like syrup, or extracted from something like rosewater, fruit juice, etc., and is not called merely water anymore, is called mixed water. That which can be plainly called “water” without any clauses or qualifiers, is referred to as unmixed (muṭlaq) water, like all the normal waters out there.
Issue No.22- Unmixed water is of five types, each having its own ruling. The five types of unmixed water are:1) Kurr Water 2) Less than Kurr Water (Qalīl) 3) Flowing Water (Jārī) and tap water, 4) Rainwater 5) Well water.All of these types of water are ṭāhir and muṭahhir (make ṭāhir) but mixed water does not make things ṭāhir; it becomes najis upon contact with a najis substance.
Issue No.31-Less than kurr water is water whose quantity is less than kurr and does not spring from the earth.
Issue No.34- Water which springs from the earth and flows (like the water of a spring or a qanat) or flows from condensed snow in the mountains is called flowing water.
Issue No.41- Rainwater is to be treated as flowing water, and if it reaches anything najis, it will make it ṭāhir, irrespective of whether it is earth, body, carpet or other than these, provided that there is no original najāsah on them and that the ghusālah (the water with which it has been washed) separates from it.
Issue No.49- The water of a well is ṭāhir and makes najis things ṭāhir, even if it is less than kurr. And if a najis thing which does not contain an original najāsah is washed with it, it becomes ṭāhir, provided that it does not take on the colour, smell or taste of the original najāsah.
Issue No. 88- As per obligatory precaution, original najis substances are ten things: 1) Urine 2) Faeces3) Semen 4) Dead body 5) Blood 6) Dog 7) Pig 8) Intoxicating Beverages9) Beer10) The Sweat of a Faeces-Eating Animal.
Issue No. 89- The urine and faeces of the human being, those animals whose meat is haram to eat, and blood gushing animals [1], is najis, and the urine of an animal whose meat is haram, but its blood does not gush out when slaughtered should be avoided as an obligatory precaution. The d r o ppings of small insects such as mosquitoes, flies, etc., are ṭāhir, however, d r o ppings of mice, cats and wild animals must be avoided.
Issue No. 93-the semen of the human being and blood gushing animals is najis irrespective of whether its meat is halal or haram, and the obligatory precaution is to also avoid the semen of non-blood gushing animals.
Issue No. 131- The perspiration of a person who becomes junub through haram means, let it be fornication, sodomy or masturbation, is ṭāhir. However, as an obligatory precaution, one must not perform prayer with this sweat on the body or clothes.
Issue No. 94- The dead body of blood gushing animals is najis if it has died a natural death; but if it has been killed in a manner other than that prescribed by Islam, it is ṭāhir, though it is better, as per recommended precaution, to avoid it. Therefore, the meat and the hide of animals which are from non-Muslim countries are ṭāhir, but are haram to eat unless one is sure that the animal has been slaughtered according to Islamic law or the one who renders them says so.
Issue No. 102- The blood of the human being and every blood gushing animal is najis. However the blood of non-blood gushing animals like fish, snakes and mosquitos, is ṭāhir.
