Musnad Ahmad 30:2328

Harun ibn Ma'ruf narrated to us, he said: Ibn Wahb narrated to us, he said: Ma'ruf ibn Suwayd al-Judhami narrated to me, that he heard Ali ibn Rabah saying: I heard Abu Hurayrah saying: The Messenger of Allah, may Allah bless him and grant him peace, said: "There is no contagion, and no superstition (tiyarah), and the evil eye is true."