Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: The Messenger of Allah (peace and blessings be upon him) dispatched Abdullah bin Rawahah al-Ansari, Ja'far bin Abi Talib and Zayd bin Harithah (may Allah be pleased with them) on an expedition, but Abdullah bin Rawahah (may Allah be pleased with him) stayed behind. The Messenger of Allah (peace and blessings be upon him) asked: "What kept you behind?" He said: O Messenger of Allah, the Friday prayer; I would pray the Friday prayer and then set out. He (peace and blessings be upon him) said: "Going out in the path of Allah in the morning or in the evening is better than the world and everything in it." So he set out immediately.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12029