Q 1: Should
the clothes that have traces of urinary incontinence be purified?
The urine that stains one's clothes or body should be washed with water. This is because the Prophet (peace be upon him) said about the person who was tortured in his grave:
He did not keep himself safe from being defiled by urine.
Any urine should be cleaned up, whether it is the urine of a normal person or a person suffering from urinary incontinence. (Part No. 4; Page No. 190) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.