Musnad Abu Ya'la al-Mawsili 115:341

Abu Musa narrated to us, Muhammad bin Ja'far narrated to us, Shu'bah narrated to us, he said: I heard Qatadah narrating from Anas, who said: I heard the Messenger of Allah (ﷺ) saying—and I do not know if it was something revealed or something that was—he would say: "If the son of Adam had two valleys of wealth, he would wish or seek a third valley for them. And nothing fills the belly of the son of Adam except dust, and Allah turns in forgiveness to whoever repents."