Musannaf Ibn Abi Shayba 37:71

'Abd al-Rahim ibn Sulayman narrated to us, from Muhammad ibn Ishaq, from 'Abd Allah ibn Rafi', from Umm Salamah, who said: I heard the Messenger of Allah (may Allah bless him and grant him peace) saying upon this pulpit: "I am a predecessor for you at the Hawd (the Cistern). While I am upon it, a group will pass by you who are contrary to you. I will call out, 'Come here!' Then a caller will call out and say, 'Indeed, they have changed [the religion] after you.' So I will say, 'Away, away!'"