After urinating and doing istinja I felt something come out I checked and saw that it was a white liquid similar to water however sometimes I get white urine so I don’t know if this is urine or water. I touched it with my hand and then wiped the wetness with a towel and after I checked once again and then I touched many things in the house. Am I pure and are the things I touched pure?
Urine, animal faeces and blood belong to the Mutawassitoh najis category. In this Mutawassitoh najis category, Habib Hasan bin Ahmad al-Kaff stated that the najis is divided into two categories namely hukmiyyah (حكمية) and 'ainiyyah (عينية).
The Hukmiyyah is the one that does not appear clearly as there are no signs like odor, taste and color. The only way to clean it is to simply pour water into the area where it is contaminated. Whereas' ainiyyah is a najis that can be seen and has properties like either odor or taste or color. The way to clean it is with water until all of its properties (odor, taste and color) are gone. If the najis properties can be removed with just one wash, then it is enough. On the other hand if the najis is not able to be removed in one wash, then it needs to be washed second and third times.
In other words, if the najis cannot be removed with one wash, then it is necessary to wash it a second time. And if it is not yet lost, it is necessary to wash it a third time. If the najis has not yet been cleared of its properties by three times washing with aids such as soap and so on, then this is consider as a difficult situation (حالة التعسر). - see al-Taqrirat al-Sadidah, page 135
Sheikh al-Islam Zakaria al-Ansari mentioned that examples of hukmiyyah impurities are like dried urine and cannot be seen in its effects or properties. So, the way to clean it is to simply pour water on it once. As for the 'ainiyyah, it is necessary to eliminate its properties of odor, taste and color, unless there is a difficulty in eliminating one of the two properties, either color or odor. Therefore, in this case it is not necessary to eliminate it, and is considered as clean. However, if both properties are presented together (odor and color) on the surface, then it is necessary that both of these qualities be eliminated as there is a strong evidence that the najis is still presented. (See Fath al-Wahhab, 1/25 and Kasiifah al-Sahara, p. 182-184)