In between when Islam alleges that Allah revealed the Qur'an to Mohammed and the Qur'an's alleged collection and collation into one allegedly unified text by Caliph Uthman, some years, perhaps even decades, passed, during which the Qur'an was allegedly being preserved in the memories of those who'd heard Mohammed recite it to them, those who'd heard those who'd heard Mohammed, those who'd heard those who'd heard those who'd heard Mohammed, and those who'd heard those who'd heard those who'd heard those who'd heard those who'd heard Mohammed, etc. (Please correct me if I'm wrong.)
How do you know that not one single error entered into the remembrance of what would later become the written text of the Qur'an during this in-between time?
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