Is the prayer of one from whom a foul-smelling, stool-like fluid issues valid, given the difficulty in purifying clothes?

If the discharge is continuous, such that it does not stop for a sufficient time to perform Wudu and prayer, or if its exit is irregular, then its ruling is that of سلس (incontinence). The person afflicted with سلس performs Wudu for each prayer after its time has begun, after taking precautions with a cloth or the like, and whatever is discharged thereafter does not harm him, nor is he required to repeat the tightening and bandaging with every Wudu unless he was initially negligent. The Maliki school of thought holds that this discharge is considered سلس if it is continuous for all or most or half of the time, in which case it does not nullify Wudu. The accompanying impurity is excused, so there is no need to purify it or change clothes.