Al-Kāfi
Hadith 20715ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ سُلَيْمٍ الْفَرَّاءِ عَمَّنْ أَخْبَرَهُ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ أَعْرِبِ الْقُرْآنَ فَإِنَّهُ عَرَبِيٌّ.
5. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Sulaym al-Farra’ from those whom he has mentioned (in his book) from abu ‘Abd Allah (a.s.) who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘Read the Holy Quran with clarity; it is Arabic.’”