مَّا لَهُم بِهِۦ مِنْ عِلْمٍۢ وَلَا لِءَابَآئِهِمْ ۚ كَبُرَتْ كَلِمَةًۭ تَخْرُجُ مِنْ أَفْوَٰهِهِمْ ۚ إِن يَقُولُونَ إِلَّا كَذِبًۭا
They have no knowledge of it, nor had their fathers. Grave is the word that comes out of their mouths; they speak not except a lie.
Translation · Saheeh International
Ibn Kathīr (abridged)
Which was revealed in Makkah
What has been mentioned about the Virtues of this Surah and the first and last ten Ayat
Imam Ahmad recorded that Al-Bara' said: "A man recited Al-Kahf and there was an animal in the house which began acting in a nervous manner. He looked, and saw a fog or cloud overhead. He mentioned this to the Prophet , who said:
«اقْرَأْ فُلَانُ، فَإِنَّهَا السَّكِينَةُ تَنْزِلُ عِنْدَ الْقُرْآنِ أَوْ تَنَزَّلَتْ لِلْقُرْآن»
(Keep on reciting so and so, for this is the tranquillity which descends when one reads Qur'an or because of reading Qur'an;) This was also recorded in the Two Sahihs. This man who recited it was Usayd bin Al-Hudayr, as we have previously mentioned in our Tafsir of Surat Al-Baqarah. Imam Ahmad recorded from Abu Ad-Darda' that the Prophet said:
«مَنْ حَفِظَ عَشْرَ آيَاتٍ مِنْ أَوَّلِ سُورَةِ الْكَهْفِ عُصِمَ مِنَ الدَّجَّال»
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