Musnad Ahmad 1034:164

Waki' narrated to us, Sufyan narrated to us, from al-A'mash, from Abu Wa'il, from Hudhayfah, who said: "The Messenger of Allah (ﷺ) stood among us in a station, and he informed us of what is to be until the Day of Resurrection. Whoever memorized it, memorized it, and whoever forgot it, forgot it."