Al-Waaqia • EN-TAFSIR-IBN-ABBAS
﴿ فِى كِتَٰبٍۢ مَّكْنُونٍۢ ﴾
“[conveyed unto man] in a well-guarded divine writ”
(In a Book kept hidden) it is written down in the Guarded Tablet; and this is why the oath was made