The holders back from among the believers, not having any injury, and those who strive hard in Allah's way with their property and their persons are not equal; Allah has made the strivers with their property and their persons to excel the holders back a (high) degree, and to each (class) Allah has promised good; and Allah shall grant to the strivers above the holders back a mighty reward:

And whenever a chapter is revealed, saying: Believe in Allah and strive hard along with His Messenger, those having ampleness of means ask permission of you and say: Leave us (behind), that we may be with those who sit.