Answered by Shaykh Faraz Rabbani
Question: Regarding wiping over the footgear, can one wear the footgear at anytime after performing ablution in order to subsequently wipe on them?
Answer: In the Name of Allah, Most Gracious, Most Merciful
One may wipe on footgear (leather socks or other types of equivalent footgear) any time after performing ablution (wudu), as long as one does not break one’s ablution. The time period for the wiping (24 hrs for a resident, 72 hrs for a traveller) commences when one first breaks his ablution after putting on the footgear..
If one performed the ablution at 6 am, wore his footgear at 8 am, and broke his ablution at 1 pm, one has 24 hours from 1 pm.