Ruwan da ya canza daya ko duka siffofinsa saboda an gauraya shi da wani abu da ba zai iya gurbata shi ba, yana da nau'i biyar.
Water, which has changed any or all of its qualities because of having been mixed with something that cannot pollute it, is of five types.
1. Ruwan da ya canza saboda zamansa a wuri ɗaya na tsawon lokaci ko kuma saboda ya zama wurin haihuwar kifi da kwaɗi.
1. Water that has changed because of its being stagnant for a long period or due to its being birth place of fish and frogs.
2. Ruwan da ya canza saboda wurin da yake tsaye, ko hanyar da yake bi, ko kuma saboda an hada shi da laka ko gishiri.
2. Water which has changed because of the place where it is standing, the channel it flows through or having been mixed with clay or salt.
3. Ruwan da ya canza saboda an gauraya shi da wani abu da ba zai yiwu a kiyaye shi ba, kamar ganyen bishiya da iska take zubar da su a cikin ruwa.
3. Water that has changed because of having been mixed with something impossible to avoid it, like the leaves of tree which fall on water through wind.
4. Ruwan da ya canza launi saboda wani abu da aka shafa a cikinsa, kamar kwalta.
4. Water that has changed due to the colour of port which has been painted, tar for instance.
5. Ruwan da ya canza saboda najasar da ke kusa da shi. Misali, gawa mai wari da ke kwance kusa da ruwa, sai ruwan ya canza halinsa saboda wari ya gauraya da shi ta hanyar iska. Ko kuma ruwan da ya canza saboda ya gauraya da wani abu da ba za a iya raba shi da ruwan ba, kamar mai ko kitse.
5. Water which has changed because of the impurity that is laying nearby. A stinking corpse for instance, laying next to water and water changes its quality due to getting mixed with odour through wind. Or water that has changed because of getting mixed with something which cannot be separated such as oil or fat.