It is narrated from Sayyiduna Buraydah (may Allah be pleased with him) that he (peace and blessings be upon him) offered several prayers with one ablution on the day of the Conquest of Makkah and wiped over his leather socks. Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said: I saw you (peace and blessings be upon him) do something you did not used to do. He (peace and blessings be upon him) said: "O Umar, I did it deliberately."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 759