Sayyiduna Abu Waqid al-Laythi (may Allah be pleased with him) said: We used to come to the Prophet (peace and blessings be upon him), and when revelation was sent down to him (peace and blessings be upon him), he (peace and blessings be upon him) would tell us about it. One day he (peace and blessings be upon him) said to us: "If the son of Adam had a valley (of wealth), he would love to have a second; and if he had two valleys, he would long for a third. Nothing fills the belly of the son of Adam except dust. Then Allah accepts the repentance of whoever repents."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3287