Musnad Ahmad 124:6

Abdullah ibn Ahmad said: Al-Layth ibn Khalid al-Balkhi, Abu Bakr, narrated to me, saying: Umar ibn Ali narrated to us, from Abu Hazim, from Sahl ibn Sa’d, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "A morning journey or an evening journey in the cause of Allah is better than the world and what is in it."