Sayyiduna Uqbah bin Amir al-Juhani (may Allah be pleased with him) said: I came to Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) with the news of the conquest in Syria, and I was wearing leather socks, thick ones of the kind called al-muq. Sayyiduna Umar (may Allah be pleased with him) looked at them and asked: "For how long have you not taken them off?" I said: "I put them on on Friday, and today, Friday, is the eighth day." He said: "You have attained (the Sunnah)."
(b) It is narrated from Yazid bin Abi Habib (may Allah have mercy on him), and in this narration it says: "You have attained the Sunnah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1333