Answered by Ustadha Noura Shamma, SunniPath Academy Teacher
I have read your answers regarding filth on carpet. Let us assume there is drops of moist urine and semenon clothing or on a blanket and you put it on the carpet. When you remove the blanket(or clothing) you do not see any remnants of the urine on the carpet. Is it necessary to wash the carpet in the procedure you mentioned in Filth on Carpet question (determining the affected area, and soaking up the carpet with water and washing 3 times). What if you do not know where the affected area is? In another scenario, what if the urine and semen are dry on the blanket(clothes) and then they came in contact with the carpet. Then would the carpet have to be cleaned? If dry filth comes in contact with something, does the the latter become najas? Please answer in detail. I appreciate the time and effort your taking in answering my questions
In the Name of Allah the Most Merciful, the Most Compassionate
The basic principle is that unless there is noticeable effect from the filth on the clean substance then no filth transferred.
To help make this principle clear,
1. Dry filth comes in contact with dry pure substance: no affect = no transfer of filth.
2. Dry filth comes in contact with moist clean substance: no affect = no transfer of filth.
3. Dry filth with dripping (such that at least a couple of drops can be squeezed out) clean substance: some affect (smell for example) = filth transferred, must be cleaned.
*The reverse is also true.
And Allah knows best.
Barak Allah feekum,