It is narrated from Hazrat Anas (may Allah be pleased with him) that he heard the Prophet (peace and blessings be upon him) saying—I do not know whether it was a verse or the saying of the Prophet (peace and blessings be upon him)—that if the son of Adam had two valleys full of gold, he would desire a third, and nothing fills the mouth of the son of Adam except the dust of the grave. And whoever repents, Allah accepts his repentance.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13873