tfsrOWTP#026 - Tafseer As-Sa'di - Soorah Al-Anbiyaa' 021 - Aayaat 104-112 - Ustadh Abu Mussab

And (remember) the Day when We shall roll up the heaven like a scroll rolled up for books. As We began the first creation, We shall repeat it. (It is) a promise binding upon Us. Truly, We shall do it. (Quran 21:104)