1. When the sun is wound round and its light is lost and is overthrown.[1]
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(V.81:1) Narrated Abu Hurairah رضي الله عنه: The Prophet صلى الله عليه وسلم said, "The sun and the moon will be folded up (or joined together or deprived of their lights) on the Day of Resurrection." [See the Qur’ân (V.75:9)] (Sahih Al-Bukhari, Vol.4, Hadith No.422).