It is narrated from Sayyiduna Abu Talha that once a person was reciting the Noble Qur'an in front of Sayyiduna Umar. During this, Sayyiduna Umar prompted him, but the man said, "I recited it like this in front of the Prophet (peace and blessings be upon him), but the Prophet (peace and blessings be upon him) did not make any change in it." So both of them went together to the Prophet (peace and blessings be upon him), and that man recited the Noble Qur'an to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) approved of his recitation. Sayyiduna Umar apparently felt something about this, so the Prophet (peace and blessings be upon him) said: "O Umar, the entire Qur'an is correct as long as a person does not change forgiveness into punishment or punishment into forgiveness."