Musnad Ahmad 30:1575

Muhammad ibn Abdullah narrated to us, Imran—meaning Ibn Za'idah ibn Nashit—narrated to us, from his father, from Abu Khalid, from Abu Hurairah, who said: The Messenger of Allah (ﷺ) said—meaning: "Allah the Almighty said: 'O son of Adam, devote yourself to My worship, I will fill your chest with richness and block your poverty. And if you do not do so, I will fill your chest with busyness and I will not block your poverty.'"