Abd Allah narrated to us; Dawud ibn Umar narrated to us, and Abthar narrated to us; al-Aʿmash informed us, from Salim ibn Abi al-Jaʿd, who said: Abu al-Dardaʾ—may Allah have mercy on him—said, “The one who teaches goodness and the one who learns it share the same reward, and there is no goodness left in the rest of mankind after them.”