4ذٰلِكَ بِأَنَّهُم شاقُّوا اللَّهَ وَرَسولَهُ ۖ وَمَن يُشاقِّ اللَّهَ فَإِنَّ اللَّهَ شَديدُ العِقابِTaqi UsmaniThat is because they were hostile to Allah and His Messenger. And whoever has hostility with Allah (must know that) Allah is severe in punishment.