Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) reported: I was with Sayyiduna Umar (may Allah be pleased with him) when Sayyiduna Sa'd (may Allah be pleased with him) and Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) asked about wiping over the leather socks, and he decided in favour of Sayyiduna Sa'd (may Allah be pleased with him). I said to Sayyiduna Sa'd (may Allah be pleased with him): Certainly we know that the Messenger of Allah (peace and blessings be upon him) wiped over the leather socks, but was it before the revelation of Surah al-Ma'idah or after it? No one will tell you that the Messenger of Allah (peace and blessings be upon him) wiped after the revelation of Surah al-Ma'idah. Then Sayyiduna Umar (may Allah be pleased with him) fell silent.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1290