Musnad Abu Ya'la al-Mawsili 115:17

'Abd al-Wahid and Ibn Hisab narrated to us, they said: Abu 'Awanah narrated to us, from Qatadah, from Anas: That the Messenger of Allah (ﷺ) used to say: "If the son of Adam had two valleys of wealth, he would seek a third valley to add to them. And nothing fills the belly of the son of Adam except dust, and Allah turns in forgiveness to whoever repents."