ٱلسَّمَآءُ مُنفَطِرٌۢ بِهِۦ ۚ كَانَ وَعْدُهُۥ مَفْعُولًا
A l ssam a o munfa t irun bihi k a na waAAduhu mafAAool a n [the Day] on which the skies shall be rent asunder, [and] His promise [of resurrection] fulfilled?
 - Mohammad Asad
the heaven shall split asunder, and His promise shall be fulfilled?
 - Muhammad Farooq-i-Azam Malik
It will 'even' cause the sky to split apart. His promise 'of judgment' must be fulfilled.
 - Mustafa Khattab
The very heaven being then rent asunder. His promise is to be fulfilled.
 - Marmaduke Pickthall
Whereon the sky will be cleft asunder? His Promise needs must be accomplished.
 - Abdullah Yusuf Ali