Narrated to us Yahya ibn Yahya: informed us Hushaym, from Ubaydullah ibn Abi Bakr, who said: I heard Anas say: The Messenger of Allah, peace and blessings be upon him, said. And narrated to me Isma'il ibn Salim: narrated to us Hushaym: informed us Ubaydullah ibn Abi Bakr, from his grandfather, Anas ibn Malik, that the Messenger of Allah, peace and blessings be upon him, said: "When the People of the Book greet you with salutations, then say: 'And upon you.'"