"The first thing which will be judged among a man's deeds on the Day of Resurrection is the Prayer. If this is in good order then he will succeed and prosper but if it is defective then he will fail and will be a loser."

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On the Day of Judgment, the servant of Allah will be given his book of deeds, where he finds rewards for things he did not do, so he asks: O My Lord, where did I get these deeds? So Allah replies to him saying: These are because of the people who backbited you and you did not know about it.

— Abu Umamah al Bahili