4ذٰلِكَ بِأَنَّهُم شاقُّوا اللَّهَ وَرَسولَهُ ۖ وَمَن يُشاقِّ اللَّهَ فَإِنَّ اللَّهَ شَديدُ العِقابِAisha BewleyThat is because they were entrenched in hostility towards Allah and His Messenger. If anyone is hostile towards Allah, Allah is Severe in Retribution.