Is it true that if the underwear is wet and madhy (pre-seminal fluid) is discharged, not the entire wet area becomes impure, but only the part that was affected, and if madhy is discharged onto the wet area and touches the outer clothing, does the part that was touched by the madhy become impure?

The transmissibility of impurities is a matter of scholarly disagreement; some scholars hold that they are transmissible, while others do not. The arrival of impurity is not determined by mere doubt, but by certainty. Moreover, madhi (pre-seminal fluid) is purified by sprinkling water. Waswas (obsessive whispering/doubt) is a dangerous disease whose cure lies in ignoring and disregarding it.