At Hazrat Mahdi’s (as) coming, A DOUBLE-TAILED COMET WILL APPEAR AND WILL BE SO BRIGHT THAT IT WILL SHINE LIKE THE FULL MOON. After the appearance of this COMET THERE WILL BE SUCH RAIN THAT GREAT DAMAGE WILL BE CAUSED.
But people will welcome that rain. Because NO RAIN WILL HAVE FALLEN FOR THE PREVIOUS 3 YEARS.
 
(The Twelfth Imam, Murtadha Lakha)


The hadith refers to a double-tailed comet that will be seen when Hazrat Mahdi (as) appears and says it will be strikingly bright. The comet “Lulin,” which came closest to the Earth on 24 February, 2009, has two tails, just as described in the hadith, and is six times brighter than other stars. The hadith goes on to speak of damage caused by heavy rainfall following the sighting of the comet. Just as described in the hadith, in March 2009 the walls of the Dim Dam broke under heavy pressure, forcing thousands of people from their homes. It will also be remembered that there has been a considerable decline in rainfall in the world as a whole in the last 3 years and that drought appeared in many regions. Therefore, the rain was welcomed by people, despite the considerable damage it caused, just as described in the hadith.