ذَٰلِكَ بِأَنَّهُمْ شَآقُّوا۟ ٱللَّهَ وَرَسُولَهُۥ ۖ وَمَن يُشَآقِّ ٱللَّهَ فَإِنَّ ٱللَّهَ شَدِيدُ ٱلْعِقَابِ
Zaalika bi annahum shaaqqul laaha wa Rasoolahoo wa many yushaaaqqil laaha fa innal laaha shadeedul-'iqaab
because they set themselves against God and His Messenger: God is stern in punishment towards anyone who sets himself against Him.
That is because they set themselves against God and his Messenger — and whoever sets himself against God, indeed God is severe in punishment.