It is narrated from Hazrat Jarir (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) would enter the toilet wearing leather socks, then after coming out, he would perform ablution and wipe over them.
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 19223