What is the ruling on placing a bag over the penis for someone suffering from urinary incontinence to prevent impurity from reaching the body, and is it permissible to keep it for more than one prayer, and is it obligatory to wash drops of water after urination despite the difficulty?

A person suffering from urinary incontinence must prevent the spread of urine by taking preventative measures, such as stuffing the penis and tying it with a cloth, performing ablution for each obligatory prayer, and initiating the prayer immediately after ablution. Wearing the aforementioned bag is not sufficient to prevent the leakage of urine. If you prayed with the bag containing urine impurity intentionally, your prayer is invalid and must be repeated. However, if you were unaware of the presence of the impurity or its effect on the prayer, your prayer is valid and you are not required to repeat it, according to the soundest opinions of scholars. Water droplets that fall on you after purifying the urine are pure, but those that fall on you during the washing process and before purification are impure and must be washed off.