“قُلْ هُوَ اللَّهُ أَحَدٌ ، اللَّهُ الصَّمَدُ ، لَمْ يَلِدْ وَلَمْ يُولَدْ ، وَلَمْ يَكُنْ لَهُ كُفُوًا أَحَدٌ”

“Say, He is Allah, [who is] One, Allah, the Eternal Refuge. He neither begets nor is born, Nor is there to Him any equivalent.”

2) Belief in the existence of Angels
- They were created from light and were created before humans for the purpose of worshipping Allah.
- Angels do not sleep, eat or suffer from illnesses. It is crucial to believe in the angels, as they keep a record of our deeds.

Allah clearly confirmed the importance of this pillar in the Holy Qur’an as He says in Surah An-Nisa:

“يَا أَيُّهَا الَّذِينَ آمَنُواْ آمِنُواْ بِاللَّهِ وَرَسُولِهِ وَالْكِتَابِ الَّذِي نَزَّلَ عَلَى رَسُولِهِ وَالْكِتَابِ الَّذِيَ أَنزَلَ مِن قَبْلُ وَمَن يَكْفُرْ بِاللَّهِ وَمَلائِكَتِهِ وَكُتُبِهِ وَرُسُلِهِ وَالْيَوْمِ الآخِرِ فَقَدْ ضَلَّ ضَلالاً بَعِيدًا”

“O you who have believed, believe in Allah and His Messenger and the Book that He sent down upon His Messenger and the Scripture which He sent down before. And whoever disbelieves in Allah, His angels, His books, His messengers, and the Last Day has certainly gone far astray.”

3) Belief in the books of Allah
- Allah revealed books to his messengers as a form of guidance and proof for mankind.
- Among these books, is the Quran, which was revealed to Prophet Muhammad.

Allah has guaranteed the protection of the Quran from any distortion or corruption and clearly mentioned that in the Holy Qur’an as He says in Surah Al-Hijr:

“إِنَّا نَحْنُ نَزَّلْنَا الذِّكْرَ وَإِنَّا لَهُ لَحَافِظُونَ”

“Indeed, it is We who sent down the Qur’an and indeed, We will be its guardian.”

4) Belief in Allah’s messengers and that Muhammad is the last of them
- Most of the messengers of Allah were sent to a specific nation except Prophet Muhammad, who was sent to guide all of mankind
- duty of Muslims to send salaams (Peace and Blessings of Allah) when mentioning the names of any of the Prophets.

Allah clearly mentioned that he sent the messengers in the Holy Qur’an as He says in Surah An-Nahl:

“وَلَقَدْ بَعَثْنَا فِي كُلِّ أُمَّةٍ رَّسُولاً أَنِ اعْبُدُواْ اللَّهَ وَاجْتَنِبُواْ الطَّاغُوتَ فَمِنْهُم مَّنْ هَدَى اللَّهُ وَمِنْهُم مَّنْ حَقَّتْ عَلَيْهِ الضَّلالَةُ فَسِيرُواْ فِي الأَرْضِ فَانظُرُواْ كَيْفَ كَانَ عَاقِبَةُ الْمُكَذِّبِينَ”

And We certainly sent into every nation a messenger, [saying], “Worship Allah and avoid Taghut.” And among them were those whom Allah guided, and among them were those upon whom error was [deservedly] decreed. So proceed through the earth and observe how was the end of the deniers.

5) Belief in the Day of Judgment
- belief in the day of akhirah and Muslims attest to the truth of everything Allah or his messenger, sallallahu ‘alayhi wa sallam, said about death.

- Allah has set a certain period for the whole universe, whose end will be the final hour. During the final hour, humans will be questioned about their deeds in this world. 

Allah described justice of the judgment day in the Holy Qur’an as He says in Surah Al-Anbya:

“وَنَضَعُ الْمَوَازِينَ الْقِسْطَ لِيَوْمِ الْقِيَامَةِ فَلا تُظْلَمُ نَفْسٌ شَيْئًا وَإِن كَانَ مِثْقَالَ حَبَّةٍ مِّنْ خَرْدَلٍ أَتَيْنَا بِهَا وَكَفَى بِنَا حَاسِبِينَ”

“And We place the scales of justice for the Day of Resurrection, so no soul will be treated unjustly at all. And if there is [even] the weight of a mustard seed, We will bring it forth. And sufficient are We as accountant.”

6) Belief in the Qadhaa’ & Qadr (Doom & Divine Decree)
- Doom (Qadhaa’) is the general decree of Allah that every human shall die
- divine decree (Qadr) is a particular decree of Allah or the execution of Qadhaa’, that a certain person is to die at a particular time and place

Moreover, The belief in Divine Predestination includes belief in four things:

1. Allah is well acquainted with everything taking place, and His Knowledge encompasses everything.

2. Allah has pre-assigned portions of everything in the preserved tablet.

3. Nothing takes place in the heavens or on the earth without the will of Allah and his wish. Whatever Allah wills, takes place and whatever he does not, will do not take place.

4. Allah is the creator of all things. There is no other creator besides him.