Musannaf Ibn Abi Shayba 21:691

Talq ibn Ghannam narrated to us, he said: Shayban narrated to us, from Abu Ishaq, from Khaythama [al-Kufi], from Ali, who said: Whoever says upon every sneeze he hears, "Praise be to Allah, Lord of the worlds, in every state," will never experience the pain of a tooth or an ear.