For Muslims, God is the one and only creator and controller of everything: therefore nothing takes place unless God allows it to happen. Whether it's good or bad, God must have a reason for it
Muslims trust in God's will. To show this they often add the words 'God willing' (InshAllah) in their sentences to show that they believe that God is in control
The Caliph (leader) should be elected, Only Quran and Sunnah have the authority to provide religious guidance, Abu Bakr was the rightful leader after the Prophet's death