﴿ وَمَن يَهْدِ ٱللَّهُ فَمَا لَهُۥ مِن مُّضِلٍّ ۗ أَلَيْسَ ٱللَّهُ بِعَزِيزٍۢ ذِى ٱنتِقَامٍۢ ﴾

“whereas he whom God guides aright can never be led astray. Is not God almighty, an avenger of evil?”

(And he whom Allah guideth) to His religion, (for him there can be no misleader) from His religion; the reference here is to Abu Bakr and his fellow believers; it is also said that the reference is to the Prophet Muhammad (pbuh). (Is not Allah Mighty) in His sovereignty and dominion, (Able to Requite) Able to take revenge on those who disbelieve in Him?