It is narrated from Abu Bakrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) granted concession to the traveler to wipe over the leather socks for three days and three nights, and to the resident for one day and one night.
Hadith Referenceمسند الإمام الشافعي / كتاب الطهارة / 83
Hadith Takhrijاخرجه ابن ماجة، الطهارة، باب ما جاء في التوقيت في المسح للمقيم والمسافر (556) وصححه ابن الجارود (87) وابن خزيمة (192).