ذَٰلِكَ بِأَنَّهُمْ شَاقُّوا اللَّهَ وَرَسُولَهُ ۚ وَمَنْ يُشَاقِقِ اللَّهَ وَرَسُولَهُ فَإِنَّ اللَّهَ شَدِيدُ الْعِقَابِ

Surah Al-Anfal : 13
That is because they opposed Allah and His Messenger. And whoever opposes Allah and His Messenger - indeed, Allah is severe in penalty.

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