It is narrated from Sayyiduna Khuzaymah bin Thabit (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said concerning wiping over leather socks: "For the traveller, three days and three nights; and for the resident, one day and one night."
Hadith Referenceالمعجم الكبير للطبراني / باب الخاء / 3762