SHAFAQNA – It is narrated from Naseem, the servant of Imam Hassan Askari (AS) who said: One night, probably ten nights after the birth of Imam Mahdi (AJ), as I was entering the room to see Imam Hassan Askari (AS), I sneezed. After my sneeze, Imam (AS) said: The mercy of Allah (SWT) be on you (Yarhamakullah). Naseem continued: I became very happy with what Imam Askari (AS) said. Then Imam (AS) said: Do you want me to give you good news about sneezing? I replied: Yes; and Imam Askari (AS) explained: The person who sneezes will be saved from death for up to three days, because sneeze is the sign of good health and being healthy .
 Beharul Anwaar, Vol. 51, Page 5.