Musnad Ahmad 32:1392

Abu al-Mughirah narrated to us, al-Awza'i narrated to us, Isma'il ibn 'Ubayd Allah narrated to us, he said: Anas ibn Malik came to al-Walid ibn 'Abd al-Malik, and he asked him: "What did you hear from the Messenger of Allah, may Allah bless him and grant him peace, mentioning about the Hour?" He said: I heard the Messenger of Allah say: "You and the Hour are like these two."