Muslims should refrain from falling into disputes and quarreling among themselves. Before all else God deems that unlawful. "Obey God and His Messenger and do not quarrel among yourselves lest you lose heart and your momentum disappear. And be steadfast. God is with the steadfast. " (Surat Al-Anfal, 46) Yet God says that He will punish such acts in this world as well. God says firstly that they will lose heart and that their momentum would disappear. God says that these will happen to those who quarrel among themselves as a preliminary trouble; they lose heart and lose their momentum. So what should a Muslim do in such a situation? He will be steadfast. God protects and watches over those who are steadfast. - Harun Yahya