Hazrat Muhammad bin Ja'far bin Zubair narrates that a man sneezed in the presence of the Holy Prophet (peace and blessings be upon him), so the Prophet (peace and blessings be upon him) prayed for him by saying "Yarhamuk Allah" (may Allah have mercy on you). Then he sneezed again, and the Prophet (peace and blessings be upon him) prayed for him by saying "Yarhamuk Allah." He sneezed yet again, and the Prophet (peace and blessings be upon him) prayed for him by saying "Yarhamuk Allah." Then, when he sneezed a fourth time, the Holy Prophet (peace and blessings be upon him) said to him: "You are suffering from a cold, go and clean your nose."