Sunan an-Nasa'i 1457

Ahmad ibn Yahya informed me; he said: Abu Nu‘aym narrated to us; he said: al-‘Ala’ ibn Zuhayr narrated to us; he said: Wabarah ibn ‘Abd al-Rahman narrated to us: Ibn ‘Umar would not pray more than two rak‘ahs while traveling. He would not pray before them or after them. He was asked, “What is this?” He said: “This is how I saw the Messenger of Allah (peace and blessings be upon him) do it.”