نفش
Appears 2 times in the Quran.
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21:78 وَدَاوُۥدَ وَسُلَيْمَٰنَ إِذْ يَحْكُمَانِ فِى ٱلْحَرْثِ إِذْ نَفَشَتْ فِيهِ غَنَمُ ٱلْقَوْمِ وَكُنَّا لِحُكْمِهِمْ شَٰهِدِينَ
And Dawood and Sulaiman when they gave judgment concerning the field when the people's sheep pastured therein by night, and We were bearers of witness to their judgment.
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And the mountains shall be as loosened wool.