It is narrated from Sayyiduna Khuzaymah bin Thabit (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "For the traveller, three days and three nights; and for the resident, one day and one night. He may wipe over his leather socks provided that he put them on while his feet were pure."
Hadith Referenceالمعجم الكبير للطبراني / باب الخاء / 3777