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Surah Al-Qamar Ayah 36
سُورَةُ القَمَرِSurah Al-Qamar begins with the splitting of the moon as a sign. It repeatedly states that the Quran is made easy to remember, while warning of past destructions.
36
وَلَقَدۡ أَنذَرَهُم بَطۡشَتَنَا فَتَمَارَوۡا۟ بِٱلنُّذُرِ
English
And he had already warned them of Our assault, but they disputed the warning.