Arabic text
عَنْ أَنَسٍ رَضيَ اللهُ عنه قَالَ: قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ: «لَوْ كَانَ لِابْنِ آدَمَ وَادِيَانِ مِنْ مَالٍ لَابْتَغَى وَادِيًا ثَالِثًا، وَلَا يَمْلَأُ جَوْفَ ابْنِ آدَمَ إِلَّا التُّرَابُ، وَيَتُوبُ اللهُ عَلَى مَنْ تَابَ».
Translation
Anas (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "If the son of Adam were to possess two valleys full of wealth, he would seek the third. Nothing can fill his belly except dust, and Allah accepts the repentance of whoever repents."
Explanation
The Prophet (may Allah's peace and blessings be upon him) informed that if the son of Adam had a valley filled with gold, he would love to have two other valleys of gold out of his greed, which is part of his nature. He will continue to be greedy for worldly possessions until he dies and his belly is filled with the dust of his grave.
Source: HadeethEnc.com