Ubayd bin Jurayj said: It was said to Sayyiduna Ibn Umar (may Allah be pleased with them both): We have seen you do something that we have not seen anyone other than you do. He said: What is it? The people said: We have seen you wearing Sibti sandals. He said: I saw the Messenger of Allah (peace and blessings be upon him) wearing them, and he (peace and blessings be upon him) would perform ablution in them and wipe over them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1363