All the Prophets' bodies are alive (this is comfirmed by sound hadith) and those of false Prophet's are not.
Then what happened to graves of 123998 Prophets , where are those graves now ?
This kind of reasoning can turn some people away from religion, you know. If I believe in the preservation of the dead body of Holy Prophets (AHA) then I would like to see their graves too , they should have been preserved too.
Now we know the grave of our holy Prophet (SAW) is in madina , Hazrat Esa were taken to Heavens but what happened to graves of other 123998 Prophets ? Where are those graves ?