At-Takwīr - 1

﴿بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ إِذَا الشَّمْسُ كُوِّرَتْ﴾

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1. When the sun is wound round and its light is lost and is overthrown.[1]