Sayyiduna Buraydah (may Allah be pleased with him) said: I heard the Prophet (peace and blessings be upon him) reciting in the prayer: "If the son of Adam had a valley of gold, he would seek a second one along with it; and if he were given a second one, he would seek a third along with it. Nothing but dust can fill the belly of the son of Adam, and Allah Almighty accepts the repentance of whoever repents."
Bazzar recorded it, and its narrators are the narrators of the Sahih except Subayh Abu al-Ala', who is thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 17790