Salim narrates from his father, Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), that Sayyiduna Sa’d (may Allah be pleased with him) asked Sayyiduna Umar (may Allah be pleased with him) about wiping over the leather socks (khuffs). He replied:“I heard the Noble Prophet (peace and blessings be upon him) commanding to wipe over the upper part of the leather socks, which is for three days and three nights for the traveler, and for one day and one night for the resident.”