Quran on Wealth

It is not for a believer to kill a believer unless (it be) by mistake. He who hath killed a believer by mistake must set free a believing slave, and pay the blood- money to the family of the slain, unless they remit it as a charity. If he (the victim) be of a people hostile unto you, and he is a believer, then (the penance is) to set free a believing slave. And if he cometh of a folk between whom and you there is a covenant, then the blood-money must be paid unto his folk and (also) a believing slave must be set free. And whoso hath not the wherewithal must fast two consecutive months. A penance from Allah. Allah is Knower, Wise.

And covet not the thing in which Allah hath made some of you excel others. Unto men a fortune from that which they have earned, and unto women a fortune from that which they have earned. (Envy not one another) but ask Allah of His bounty. Lo! Allah is ever Knower of all things.

And walk not in the earth exultant. Lo! thou canst not rend the earth, nor canst thou stretch to the height of the hills.