AZ ZUMAR — Ayat 23
اللَّهُ نَزَّلَ أَحْسَنَ الْحَدِيثِ كِتَابًا مُّتَشَابِهًا مَّثَانِيَ تَقْشَعِرُّ مِنْهُ جُلُودُ الَّذِينَ يَخْشَوْنَ رَبَّهُمْ ثُمَّ تَلِينُ جُلُودُهُمْ وَقُلُوبُهُمْ إِلَى ذِكْرِ اللَّهِ ذَلِكَ هُدَى اللَّهِ يَهْدِي بِهِ مَنْ يَشَاء وَمَن يُضْلِلْ اللَّهُ فَمَا لَهُ مِنْ هَادٍ
Allah has sent down the best statement: a consistent Book wherein is reiteration. The skins shiver therefrom of those who fear their Lord; then their skins and their hearts relax at the remembrance of Allah . That is the guidance of Allah by which He guides whom He wills. And one whom Allah leaves astray - for him there is no guide.
Tafsir Ibnu Katsir
اللَّهُ نَزَّلَ أَحْسَنَ الْحَدِيثِ كِتَـباً مُّتَشَـبِهاً مَّثَانِيَ تَقْشَعِرُّ مِنْهُ جُلُودُ الَّذِينَ يَخْشَوْنَ رَبَّهُمْ ثُمَّ تَلِينُ جُلُودُهُمْ وَقُلُوبُهُمْ إِلَى ذِكْرِ اللَّهِ ذَلِكَ هُدَى اللَّهِ يَهْدِى بِهِ مَن يَشَآءُ وَمَن يُضْلِلِ اللَّهُ فَمَا لَهُ مِنْ هَادٍ
23. Allah has sent down the Best Statement, a Book, its parts resembling each other, (and) oft-repeated. The skins of those who fear their Lord shiver from it. Then their skin and their heart soften to the remembrance of Allah. That is the guidance of Allah. He guides therewith whom He wills; and whomever Allah sends astray, for him there is no guide. Here Allah praises His Book, the Noble Qur'an, which was revealed to His noble Messenger . Allah says,