It is narrated from Salamah bin Akwa’ (may Allah be pleased with him) that he heard the Prophet (peace and blessings of Allah be upon him) when a man sneezed in his presence, so the Prophet (peace and blessings of Allah be upon him) said to him:“May Allah have mercy on you.”Then the man sneezed a second time, so the Prophet (peace and blessings of Allah be upon him) said:“The man has a cold.”And in the narration of Tirmidhi, when he sneezed a third time, the Prophet (peace and blessings of Allah be upon him) said:“He has a cold.”Narrated by Muslim and Tirmidhi.