Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Wiping over the leather socks (khuffs) is for one day and night for the resident, and three days and nights for the traveller."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12370