Deviation is mentioned in the Quran in these verses:
[4:27] God wishes to redeem you, while those who pursue their lusts wish that you deviate a great deviation.
[20:108] On that day, everyone will follow the caller, without the slightest deviation. All sounds will be hushed before the Most Gracious; you will hear nothing but whispers.
To learn more, read the Quran in English.
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