Musnad Ahmad 1:10

Abu Abd al-Rahman al-Muqri narrated to us, he said: Haywah ibn Shurayh narrated to us, he said: I heard Abd al-Malik ibn al-Harith saying: Indeed, Abu Hurayrah said: I heard Abu Bakr al-Siddiq upon this pulpit saying: I heard the Messenger of Allah, may Allah bless him and grant him peace, on this day of the first year. Then Abu Bakr was overcome with emotion and wept. Then he said: I heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "You have not been given anything after the word of sincerity (Tawhid) like well-being (al-afiyah), so ask Allah for well-being."