It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Wealth is not in the abundance of possessions; true wealth is the wealth of the heart. By Allah! I do not fear poverty for you, rather I fear abundance of wealth for you. And I do not fear mistakes for you, rather I fear that you will knowingly become involved in sins.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10958