Urine in underwear 2

Question ID: 
553
Jam*** asks:

Question

i asked a question below: jamil asks: Question Si arriver urine in drops in our underwear and we do not know...as i have not feel it....if I make wudu....will it be valid....and can we perform namaz in this situation...?? Answer Your wudhu will be valid, but you can't make namaz with this underwear on you as taharat of clothing is a shart (condition) for the validity of namaz. Question: But what is the masla on 2.5 radius impurity on clothes which is excused..? Please explain...!

Answer

Our masla was based on assumption that it was to that extent mentioned by you and it was based on precautionary measure.