Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said: "There are two types of expeditions: (1) Whoever seeks Allah's pleasure (by striving), obeys the ruler, spends good wealth, and avoids corruption, then his sleeping and waking are all acts of worship; and (2) whoever strives out of pride, showing off, and for fame, disobeys the ruler, and spreads corruption in the land, then he will not return equal (in reward)—rather, he will return bearing the burden of sins."