question #1 Sahih Muslim 274g, Book 2, Hadith 99 : What is the significance of wiping over shoes during ablution in Islamic practice?

He (Mughira) helped the Apostle (ﷺ) in performing the ablution, and he performed it and wiped over his shoes. He (Mughira) said to him (about the washing of the feet after putting them off), but he (the Holy Prophet) said: I put them (feet) in when these were clean.