Holy Quran » AL ANFAAL : 13

8 : 13

ذَلِكَ بِأَنَّهُمْ شَآقُّواْ اللّهَ وَرَسُولَهُ وَمَن يُشَاقِقِ اللّهَ وَرَسُولَهُ فَإِنَّ اللّهَ شَدِيدُ الْعِقَابِ

That is because they opposed Allah and His Messenger. And whoever opposes Allah and His Messenger - indeed, Allah is severe in penalty.

Tafseer

{ ذلك } العذاب الواقع بهم { بأنهم شاقوا } خالفوا { الله ورسوله ومن يشاقق الله ورسوله فإن الله شديد العقاب } له .

It their torment fact that they violated Hakoa Allah and His Messenger and Yshaqq Allah and His Messenger, Allah is severe in punishment him.