The ruling on water that has come into contact with impurity.

I will give you an illustrative example of what I am saying. If we have a container of water and a drop of urine falls into it, does this water become ritually impure or does it remain pure? Before answering this question and explaining the scholars' opinions on it, and then reaching the purpose of giving this example, I want to draw the attention of the doctor and the attendees to the fact that something being ritually impure is different from it being filthy. It is clear, can you follow me? Good. This is a parenthetical remark so that we proceed with the topic with clarity. So, does this water, into which a drop of urine fell, become ritually impure or not? There are many opinions. One opinion says to look at this water, and this is the correct opinion, the one indicated by the evidence of the Shari'ah: look at this water. If one of its three properties has changed, it may have become ritually impure: its color, its taste, or its smell. A second school of thought says that if the water reaches two qullahs, meaning two large jars, it is pure, and if it is slightly less than that, it is ritually impure. The third and final opinion is from those who say that if the water is ten by ten, it can bear the impurity, meaning ten cubits. This is philosophical talk and non-natural talk, and it is not possible to burden all people with it, because it requires that the one afflicted by water containing impurity be an engineer, because not everyone can judge whether this pond, for example, especially if it is octagonal or if it is circular, has reached ten cubits by ten cubits or not. Where would he judge that it has reached ten cubits by ten cubits or not? This requires a competent engineer as well. Our Lord does not burden His servants with such a matter, which requires the utmost precision. But compare this opinion with the first opinion: look at the water. If one of its three properties has changed, it is ritually impure; otherwise, it is pure. This is how the Shari'ah comes; it does not come beyond the capacity of servants or beyond their minds. So here we are facing a very clear case: urine is clearly ritually impure and filthy, and it is abhorrent to the soul, whereas tears are not so. How great is the difference between them.