What is the ruling on wiping over the socks daily due to urinary incontinence ( سلس البول), prostatic fluid (المذي), and limited time to catch congregational prayer? Is it permissible to continuously wipe over the khuffayn (leather socks) in this situation and during winter? And is it obligatory to wash the entire male organ or just the glans when in doubt about the emission of prostatic fluid (المذي)?

There is no harm in you performing ablution at the beginning of the day, wearing your socks, and wiping over them for the remainder of the day, as long as the duration of wiping does not exceed one day and one night for a resident.

As for continuous urinary incontinence and madhy (pre-seminal fluid) discharge, you must wash what has been affected on the penis and around it, as well as your clothes, when the time for prayer enters. Then protect yourself [from further discharge], perform ablution, and pray, even if you miss the congregational prayer. It is recommended to perform purification early.

As for what you doubt has been affected, you are not required to wash it.

You may also adopt the Maliki school of thought, which holds that if incontinence is constant for half the time or more, it does not invalidate ablution. One afflicted by it may pray with this ablution as long as it is not invalidated by something other than the incontinence, if he is unable to stop it. You are not required to wash what has been affected if it is difficult for you to do so.