Mrs. Pandora: Allah has forgiven for Adam (peace be upon him) his sin, because Allah is Forgiving, Merciful.If his sin was inheritance between people (as christians say), so it's violates important thing in christians doctrine, it's punish someone else to forgive this sin, so how god sent his son for punishable on this sin by throwing by stones? this is impossible!
So, If Allah was chastise Adam by death, so people will stop from proliferation!
So you will make sure: Quran say is true, because when Allah forgive his sin, so Allah saved the people from interruption of reproduction.
Allah say in Quran: {Adam receive from his god a words, then Allah forgiven to him, Allah is Repents, Merciful} (2:37).