الَّذِينَ يَخْشَوْنَ رَبَّهُم بِالْغَيْبِ وَهُم مِّنَ السَّاعَةِ مُشْفِقُونَ
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سورة الأنبياء
(21/49) They are in reverence of their Lord in the unknown (though they do not see Him) and they are in dread of the Hour (of Resurrection).
Surah Al-Anbiya