Regarding the Prescribed Period for Wiping over the Socks
Question :
Is the time during which socks may remain on the feet limited to a day and a night, or five prayers only? And if a person is in a state of ritual purity, and he prays more than five prayers, beginning the wiping, for example, after 'Isha' prayer, then wiping for Fajr, Zuhr, 'Asr and Maghrib prayers, then the time for Isha' prayer comes and the Wudhu' of his Maghrib prayer is still intact - can he pray 'Isha' with the Wudhu' of Maghrib, or should he remove his socks and perform ablution?
Answer:
It has been authentically reported that the Prophet limited the time for wiping over the socks to three days and nights for the traveller and a day and a night for the resident, and he did not restrict wiping to a specific number of prayers. Based upon this, the resident may pray with wiping more than five prayers, for example; wiping over them in Wudhu' after invalidating his ablution at Maghrib time, then praying Maghrib and Isha' together at Maghrib time, then wiping over them for every one of the following prayers: Fajr, Zuhr and Asr then praying Maghrib and Isha' together at Maghrib time on the second day, due to sickness or any other valid legal reason for combining the prayers.
Source:
The Permanent Committee
Fatawa Islamiyah, Vol. 2 Page 105