اتَّخَذُوا أَيْمَانَهُمْ جُنَّةً فَصَدُّوا عَن سَبِيلِ اللَّهِ إِنَّهُمْ سَاءَ مَا كَانُوا يَعْمَلُونَ

They make a shield of their oaths, and bar from the way of Allah. Evil indeed is what they used to do.