Belief in God/Allah:
Muslims believe in one, incomparable God, He has no son nor partner, and that one has the right to be worshipped but Him alone. He is the true God, and every other god is false. In the Qur'an, Allah describes Himself:

Say, "He is Allah, the One. God, to Whom the creatures turn for their needs. He begets not, nor was He begotten, and there is none like Him."
[suah Ahad; 112:1- 4]
 

Belief in the Angels:
Muslims believe in the existence of the angels and that they are honored creatures. The angels worship Allah alone, obey Him, and act only by His command. Among the angels is Gabriel, who brought down the Qur'an to Muhammad.


Belief in Allah’s Revealed Books:
Muslims believe that Allah revealed books to His messengers as proof for mankind and as guidance for them. Among these books is the Qur'an, which  God revealed to the Prophet Muhammad (salAllahu alayhi wasalam). Allah has guaranteed the Qur'an’s protection from any change.


Belief in the Prophets:
Muslims believe in the prophets and messengers of Allah, starting with Adam, including Noah, Abraham, Ishmael, Isaac, Jacob, Moses, and Jesus (peace be upon them). But Allah’s final message to man, a repeating of the eternal message, was revealed to the Prophet Muhammad. Muslims believe that all the prophets and messengers were created human beings who had none of the divine qualities of Allah.


Belief in the Day of Judgment:
Muslims believe in the Day of Judgment (the Day of Resurrection) when all people will be resurrected for Allah’s judgment according to their beliefs and deeds.


Belief in Al-Qadar:
Muslims believe in Al-Qadar, which is Divine Predestination, but this belief in Divine Predestination does not mean that human beings do not have freewill. Rather, Muslims believe that God has given human beings freewill. This means that they can choose right or wrong and that they are responsible for their choices. The belief in Divine Predestination includes belief in four things:
1) Allah knows everything. He knows what has happened and what will happen.
2) Allah has recorded all that has happened and all that will happen.
3) Whatever Allah wills to happen happens, and whatever He wills not to happen does not happen.
4) Allah is the Creator of everything.