Musannaf Ibn Abi Shayba 23:148

Sufyan ibn 'Uyaynah narrated to us, from Sulayman ibn Suhaym, from Ibrahim ibn 'Abd Allah ibn Ma'bad, from his father, from Ibn 'Abbas, who said: The Messenger of Allah (may Allah bless him and grant him peace) drew back the curtain while the people were in rows behind Abu Bakr. He said: "O people, there remains nothing of the glad tidings of prophethood except the righteous vision that a Muslim sees or is seen for him."