Musnad Ahmad 9:6

Waki’ narrated to us, Sufyan narrated to us, from Husayn and Mansur, from Hilal ibn Yasaf, from Sa’id ibn Zayd. Waki’ said once: Mansur said: from Sa’id ibn Zayd. And he said once: Husayn, from Ibn Zalim, from Sa’id ibn Zayd: That the Prophet, peace and blessings of Allah be upon him, said: "Be still, Hira, for there is upon you nothing but a Prophet, or a Siddiq (truthful one), or a martyr." He said: And upon it were the Prophet, peace and blessings of Allah be upon him, Abu Bakr, Umar, Uthman, Ali, Talhah, Al-Zubayr, Sa’d, Abd al-Rahman ibn Awf, and Sa’id ibn Zayd, may Allah be pleased with them.