What is the ruling on one who experiences the discharge of prostatic fluid (wady) that stops after urinating for a period sufficient for purification and prayer, then resumes flowing? Is he considered to have urinary incontinence ( سلس البول )? And what is the ruling on delaying urination if that increases the prostatic fluid discharge? And does he perform another ablution for supererogatory prayers if the period of cessation of prostatic fluid discharge is only sufficient for the obligatory prayer?

The definition of سلس ( سلس al-sals - incontinence/perpetual impurity) is that a person does not find a duration long enough to perform the prayer with a valid purification. So, if the impurity occupies all the time, or if one does not know a specific time for its cessation that is sufficient for purification and prayer, then they are afflicted with سلس. If you know with certainty that the emission of this discharge stops at a specific time sufficient for purification and prayer, then you must wait and pray during that time. However, if this discharge occurs, and you know that its emission continues until the prayer time expires, then you are afflicted with سلس, and you may pray as many obligatory and supererogatory prayers as you wish with your ablution, while necessarily disregarding obsessive doubts and not ruling that something has exited except with absolute certainty.