(26) باب تَأْوِيلِ قَوْلِ اللَّهِ عَزَّ وَجَلَّ { وَلَقَدْ آتَيْنَاكَ سَبْعًا مِنَ الْمَثَانِي وَالْقُرْآنَ الْعَظِيمَ }
It was narrated that Ibn Abbas said:
Concerning the words of Allah, the Mighty and Sublime: "Seven of Al-Mathani (seven repeatedly-recited): "The seven long ones."
Reference: Sunan an-Nasa'i 916
In-book reference: Book 11, Hadith 41
English translation: Vol. 2, Book 11, Hadith 917