Arkan Al-iman (أرکان الایمان), there are six pillars or corner-stones of faith in Islam:

Belief in Allah . The Angels .The Revealed Scriptures .Allah’s Messengers
The Hereafter (including physical resurrection and life after death) .Predestination

Five of these are mentioned in the Qur’an (2:177).

  1. Belief in ALLAAH: means believing firmly in His existence, Lordship and Divinity, and in His names and attributes. Belief in Allah Most High.
    • It is the foundation of the Islamic personality.
    • It is a basic human need, more basic than the need for his provision and sustenance.
    • Acts of worship only become real and valid with the feeling and awareness of their Object.
    • Differences between the Creator and His creation.

    He is free of any need for others. He is the sole Creator of all that which pleases Him (and that which doesn’t). Allah has ordered His creation and forbidden them only in ways which are in their best interest. He sent the Messengers and the books with the truth.He alone can guide to Iman. This is why the people of paradise will say:

    [All praise be to Allah who guided us to this, for we never would have been guided to it if He had not guided us to it.]

    The best worship is insufficient as gratitude for his bounties and mercies – they always fall short and we are need of His forgiveness.

    No one’s works will merit paradise. There is no contradiction between the Hadith:

    None shall enter Paradise by his actions. And the verse which says:

    [These are the people of paradise, therein forever, a reward for that which they used to do.]

    Every human needs Allah’s forgiveness of his sins.

  2. Belief in Allaah’s Angels: This is to believe that the angels exist. No one knows their exact number except Him (Allah). He created them to worship Him. Belief that among Allah’s creation are angels. Real beings, not illusions or figments of human imagination. Created from light.A Muslim must believe specifically in all the angels named and/or described in the Qur’an and the Sunnah.Jibreel: in charge of delivering revelation.Mika’il: in charge of bringing the rain.

    Israfil: the blower of the horn on Qiyamah.

    Malik-ul-Maut: the Angel of Death who takes people’s souls at death.

    The Noble Recorders: those who record people’s actions.

    The Protectors (Al-Mu’aqqibat): who keep people from death until its decreed time.

    Ridhwan: in charge of Paradise.

    Malik: in charge of Hell.

    Munkar and Nakir: the questioners in the grave.

    The Carriers of the Throne.

    Those who record the future of the foetus.

    Those who enter the Haraam: 70,000 every day.

    Those who move about, descending upon gatherings at which Allah and His Book are mentioned and studied.

    Belief in the angels is an integral part of Iman. [See 2/285 Al-Baqarah]

    Kufr with respect to the angels is Kufr. [See 4/136 An-Nisaa]

    They are not some metaphysical force or aspect of the human psyche or self. Deviants have said such things for many centuries, and it was not a new deviation when it was being propagated in America during this century.

  3. Belief in Allaah’s Books: It is to believe that Allah revealed Divine Books to His Messengers in order for them to convey to mankind. These Books contained nothing but the truth at the time of revelation. All these Books called people to the Oneness of Allah, and that He is the Creator, Proprietor and Owner, and to Him belong the Beautiful Names and Attributes. Some of these Books are as follows: Belief in the Books of Allah.Six specific books mentioned in the Qur’an:Az-Zaboor given to Daud.At-Taurat revealed to Musa.

    Al-Injeel revealed to Isa.

    Al-Qur’an – the final revelation.

  4. Belief in the Messengers of Allah: It is to believe that Allah chose the finest amongst mankind to be Messengers whom He sent to His creation with specific legislations; to worship and obey Him, and to establish His religion and His Tawheed (oneness). Allah ordered His Messengers to convey the Message to people, so that they would not have any proof against Him after He sent them.Allah says: (And We sent not before you, [O Muhammad] except men to whom We revealed [the message] so ask the people of the message [i.e., former scriptures] if you do not know. ) (21:7)

    Specific belief in the 25 prophets named in the Qur’an: (1)Adam, (2)Nuh, (3)Idris, (4)Saleh, (5)Ibrahim, (6)Hud, (7)Lut, (8)Yunus, (9)Isma’il, (10)Is-haq, (11)Ya’qub, (12)Yusuf, (13)Ayub, (14)Shu’aib, (15)Musa, (16)Harun, (17)Alyas’, (18)Dhu Al-Kifl, (19)Daud, (20)Zakariya, (21)Sulaiman, (22)Ilyas, (23)Yahya, (24)Isa, and (25)Muhammad, prayers and salutations of Allah be upon him and upon all the messengers of Allah.

    General belief that there are many other prophets and messengers, but never assuming anything without knowledge from Allah.

  5. Belief in the Last Day: It is to believe that the life of this world will come to an end. Allah says:(Everyone upon it [i.e., the earth] will perish. And there will remain the Face of your Lord, Owner of Majesty and Honor.) (55:26-27)

    Belief in the resurrection. Reconstruction of the body and return of the soul to it. People will come forth out of their graves like locusts. Faces bent down. Rushing to the Caller.

    [See 53/76 Al-Qamar; 70/43 Al-Ma’arij; 17/49 Al-Israa; 36/78 Yasin; 20/108 Taha]

    The resurrection is of the body and the soul, not some metaphysical resurrection of the latter.

    Twelve verses from the Qur’an which prove that.

    Hadith: The sun will come down toward the people on the day of Qiyamah until it is only about a mile up. The people will be in their own perspiration according to their acts: some of them will be in it up to their ankles, some up to their groin and others up to their chins, and he pointed to his mouth. Narrated by Muslim.

    A disbeliever once came to the Prophet (saws) with an old bone, crumbled it with his hand and said: O Muhammad, will Allah bring this back to life after it has rotted?! The Prophet said: Yes, Allah will resurrect this and he will cause you to die, bring you back to life, and put you into the fire of Jahannam!

  6. Belief in Qada and Qadar (Predestination): It is to believe that Allah knew everything before it came into being, and what will happen to it afterwards. He then brought them into existence, all in accordance to His Knowledge and Measure.A Muslim believes in Allah’s predestination of all things and events (Qadhaa), His decree (Qadar), His wisdom in His actions, and His will. Nothing in the universe can occur, even the voluntary actions of His slaves, except after Allah’s knowledge, and His decree of that event. A Muslim further believes that Allah is Just in His predestination and His decree, Wise in all of His actions. His wisdom follows His will: Whatever He wills is, and whatever He does not will is not. There is no power nor any movement except by Allah. This is substantiated by the textual and logical proofs.