What is the ruling on someone who suffers from a chronic anal fissure that causes discomfort in the excretory area, leading to obsessive doubts regarding ablution (wudu') and prayer, and how can he perform prayer with devotion despite this suffering? What is the ruling on repeating ablution due to friction between clothes and skin? Is his ruling similar to that of a woman with irregular bleeding (mustahadah) or someone with urinary incontinence? And how should he deal with his feeling of unease regarding this concession?

The Islamic Sharia is based on ease, and this includes the necessity of seeking purification from urine and feces. If the trace of feces is continuous, then your ruling is like that of someone afflicted with incontinence. You should wash the area, tie a cloth over it, and perform ablution for prayer after the time for it has begun. Nothing that exits from you will harm your prayer, even if it occurs during the prayer itself. However, if the discharge ceases before the time for the obligatory prayer expires, then you must delay the prayer until it stops. As for the penis rubbing against clothing, this should not be given any attention unless you feel wetness or see a trace. One must be cautious of obsessive whisperings (waswas).