Musnad Ahmad 937:110

Waki' narrated to us, al-A'mash narrated to us, from al-Ma'rur ibn Suwayd, from Abu Dharr, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said to me: "The most numerous are the lowest on the Day of Resurrection, except for the one who said with wealth thus and thus, and thus and thus—and few are they."