Sunan Ibn Majah

It was narrated from 'Uqbah bin 'Amir Al-Juhani that:He came to 'Umar bin Khattab from Egypt. 'Umar said: ""How long has it been since you have taken off your leather socks?"" He said: ""From one Friday to the next."" He said: ""You have acted in accordance with the Sunnah