Musannaf Ibn Abi Shaybah 27663 — How many times is the sneezer

Muhammad bin Ja'far bin al-Zubayr said: A man sneezed in the presence of the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) prayed for him by saying 'Yarhamuk Allah' (May Allah have mercy on you). Then he sneezed, and he (peace and blessings be upon him) prayed for him by saying 'Yarhamuk Allah'. He sneezed again, and he (peace and blessings be upon him) prayed for him by saying 'Yarhamuk Allah'. Then, when he sneezed the fourth time, the Prophet (peace and blessings be upon him) said to him: "You are suffering from a cold. Go and clean your nose."