Who is Allah(subhana wa ta'ala)

Who is Allah(subhana wa ta'ala) ?

It is First and First duty of every human kind not only muslims to know who is the creator of this universe

 As it is mentioned in the Qur'ân:

"I(Allah(subhana wa ta'ala)) created the Jinn and humankind only to worship Me." Quran Chapter 51 Ayah 56

If any one who want to know who is true Creator then the holy Quran(the final reveloution) help him,because the Quran is for whole human kind not only for muslim

There is one Surah in holy Quran that totally explain about the Allah(subhana wa ta'ala) .

 Imam Ahmad's narration of 'Ubayy bin Ka'ab that the mushrikoon (i.e. pagan idolaters) asked: "Oh Muhammed! Tell us the geneology of Your Lord"

, whereupon God revealed this surah

 It is in this collection of what has been described about Almighty God by Himself in Surah al-Ikhlaas (literally: "The Chapter of Purity") that makes it equal to one third of the Qur'an. In this surah, Almighty

There is the Surah in holy Quran that totally explain about the Allah(subhana wa ta'ala) .

God has said:

 As it is mentioned in the Qur'ân:

قُلْ هُوَ اللَّهُ أَحَدٌ - اللَّهُ الصَّمَدُ - لَمْ يَلِدْ وَلَمْ يُولَدْ - وَلَمْ يَكُنْ لَّهُ كُفُواً أَحَدٌ

"Say! He is God, the One!
The Eternally Besought of all!
He does not beget, nor is He begotten.
And there is nothing comparable to Him."

The answer to the question that how does this surah contain comprehensively the knowledge of Tawheed and its principles which form the essence of the belief in Almighty God. God's command "He is God, the One" negates partnership with Him in every sense, whether it concerns His Self, Attributes or His Deeds. It also demonstrates the distinctiveness of God in His perfection, magnificence and majesty. The word Ahad is not used in affirmation for anyone besides God, since Ahad is more emphatic than Wahid.

The Tafseer (commentary, exegis) of Ibn 'Abbaas for the verse "God! al-Samad (i.e. the Eternally Besought of all)."
 The Chief who is best in His Nobility. The Great one who is best in His greatness. The Tolerant One who is best in His toleration. The Omnipotent who is the best in His omnipotence, the All Knowing who is best in His knowledge. The Self which is perfect in all types of nobility and greatness - that Self is only God - the Most Revered and the Most Powerful. He alone has these qualities for they do not apply to anyone save Him. No one is equal to Him and no one is like Him.

The Tafseer is also as follows: The Self who has no fear, around whom all creatures turn and Whom they seek after for all their needs and actions

Affirmation in the Oneness negates all forms of polytheism and similitude. Affirmation of all the meanings of al-Samad includes all the noble Names and the most exalted Attributes. This is the Tawheed of Affirmation.

The Tawheed of Purity is in the statement: "He does not beget nor is He begotten. And there is none comparable to Him"
 This statement can also be understood from the general statement: "Say! He is God! The One". Nothing came out of Him nor did He come out of anything. He has no equal, no likeness and no similarity.

Domination of of the concept of Tawheed in this surah. The afffirmation of Oneness for the Lord in total and absolute contradiction to all forms of Polytheism. His character of being "Eternally Besought of all"
, which proves all His Attributes, that He cannot suffer from any defect, negation of father and son which is an implication of Him being in no need and that all is in need of Him. All is characterised in the statement of His being besought and His Oneness. Negation of an equal which includes negation of similarity, resemblances and likeness. This surah includes all of these matters and is therefore rightly deserving of being called equal to a third of the Qur'an.

 If any one has these above character then he is Lord..it is proved from the day first.
This all character will match only and only to Allah(subhana wa ta'ala) .