It is narrated from Hazrat Iyad (may Allah be pleased with him) that once the Holy Prophet (peace and blessings be upon him) said during a sermon: My Lord has commanded me that I should teach you those things which He has taught me today and of which you are unaware. (So my Lord has said:) Every wealth that I have bestowed upon My servants is lawful... Then the narrator mentioned the entire hadith and at the end said: The people of Hell will be of five types: the weak person who has neither wealth nor property and is considered among you as a follower, who does not strive for the acquisition of family or wealth...
Hadith Referenceمسند احمد / أول مسند الكوفيين / 18338