Can prostatic fluid transfer from the underwear to the trousers if it is discharged, and is it sufficient to wash the trousers of prostatic fluid by immersing them in water and wringing them once, or is it necessary to rub and wring them several times?

As for madhy reaching the outer trousers, it is possible, but its transfer is not confirmed by mere doubt; rather, one must be certain of the presence of its trace to purify it. And the purification of madhy thataffects a garment is sufficient by sprinkling [water] over it, without the need for washing or squeezing.