The Prophet (sallallahu alaihi wa sallam) stated, Verily Allah is Beautiful and He loves beauty. [Muslim] For Allah subhaanahu is beautiful in His Self, His Names, His Attributes and His actions. It is not possible for a created being to express some of His beauty. Even the inhabitants of Al-Jannah -despite what they will have of everlasting ease and bounties, happiness and pleasure that cannot be measured - upon seeing their Rabb and enjoying His beauty, they will forget all that they have been granted of bounties and all that they have of happiness will amount to nothing and they will desire to forever remain in that state (i.e. of looking at Allah). They will acquire from His beauty and light that which adds to their beauty. Their hearts will be perpetually yearning and longing for the sight of their Rabb. They will be overjoyed on Yaum Al-Mazeed with such joy that will cause the hearts to nearly fly.
Likewise, He is beautiful in His names for all of them are beautiful and good. Indeed, they are absolutely the best names and the most beautiful of names.
Allah said, To Allah belong The Most Beautiful Names, therefore call upon Him by them. [Soorah 7 Al-Araaf, Aayah 180]
And He said, Do you know of any who is similar to Him [i.e. in name]? [Soorah 19 Maryam, Aayah 65]
All of that points to the utmost degree of praise, magnificence and perfection. He is not called by any name that is divisible between perfection and other than that.
Likewise, He is beautiful in His attributes. Each and every one of His attributes are attributes of perfection, and qualities of praise and magnificence. They are broader in description and more general and more linked (to His Self). Especially the characteristics of Mercy (Ar-Rahmah), Kindness (Al-Birr), Generosity (Al-Karam), and Liberality (Al-Jood).
Also all of His actions are beautiful. They all revolve around his Actions of Kindness and Goodness for which He is praised and extolled and thanked; and those actions of Justice for which He is praised due to their being in accordance with wisdom and praise. There is nothing useless or wasted or foolish nor vain nor unjust in His actions. All of them are good, all are guidance, mercy, reasonable and fair.
Verily my Rabb is on the Straight Path. [Soorah 11 Hood, Aayah 56]
It is due to His perfection that none can glorify Him enough. All His actions are perfect therefore each of His judgments and rulings are the most perfect of rulings, and that which He produces and makes is the best of creation and production. What He has fashioned is most precise and perfect:
The Work of Allah, Who perfected all things[Soorah 27 An-Naml, Aayah 88]
His has made His creation the best: Who made everything He has created good[Soorah As-Sajdah, Aayah 7]
And Who is better in judgment than Allah for a people who have firm faith? [Soorah 5 Al-Maaidah, Aayah 50]
The Cosmos is composed of many kinds and categories of beauty and that beauty is derived from Allah taaala for He is the one Who covered it with beauty and Who gave it exquisiteness. He indeed is more entitled (of the description of beauty) for the giver of the beauty is more deserving of beauty. Every type of beauty in this life and in the next, whether internal or external is due to Him. Especially that which the Ultimate Lord and Protector (Al-Mawlaa) gives to the inhabitants of Al-Jannah of excessive beauty. For if just one of the Hoorul-Een (Hooris - maidens of Al-Jannah) was to expose her shin to the world it would obliterate the light of the sun and the stars. Is not the One Who endowed them with this beauty and blessed them with such excellence and perfection, indeed more entitled than them to a beauty that has no similitude? This is clear, rational, evidence that is indisputable with regard to this tremendous issue and others relating to His attributes.
Allah taaala stated: And for Allah is the highest description. [Soorah 16 An-Nahl, Aayah 60]
Any perfection found in created things necessarily means there is no shortcoming in its Creator. Indeed the Grantor, Allah, is more deserving than those who are granted, of attributes that are not equally mutual, as there is no connection between their essence and His, or their attributes and His. The One who granted them hearing, sight, life, knowledge, ability, and beauty is far more entitled than them to those attributes. How can one express His beauty when the most knowledgeable of the creation (sallallahu alaihi wa sallam) said of Him: I am not capable of giving praises and extolling You as You have extolled and given praise upon Yourself. [Muslim] He (sallallahu alaihi wa sallam) also said: His veil is Light and if He were to lift it the sublime splendor of His Face would incinerate all that would gaze upon it from His creation. [Muslim] Glorified and free of all imperfection is Allah and He is purified and far above the statements of the wrongdoing negators of His Perfection. Their reckoning is odious ful and depraved. They are from attaining knowledge of Him or the delight of His love.
The Prophet (sallallahu alaihi wa sallam) stated in an authentic hadeeth: There are none more patient with being harmed by what he hears than Allah. They make for Him a son, nevertheless He overlooks and forgives them and provides for them. [Al-Bukhari]
He (sallallahu alaihi wa sallam) also stated, as collected by Al-Bukhari:
The son of Adam denies Me when it is not fitting for him to do so. The son of Adam abuses Me when it is not fitting for him to do so. As far as his denial of Me he says: He will not bring me back as He brought me out. Yet his initial creation was no easier than will be returning him. (i.e. both are easy) As far as his abuse of Me is his saying that I have a son. Yet I am Al-Ahad (The Unique and Singular), As-Samad (The One eternally sought by all) Who neither was born nor gives birth and there is none like unto Him.
Allah taaala abundantly gives to His slaves (all creatures) their provision whether they are obedient or disobedient and rebellious. The disobedient yet continue in their denial of Him and His messengers rush to extinguish His Deen. Nevertheless Allah is patient with all they say and do. They follow evil upon evil and He follows with favor upon favor. His Patience is the most perfect and complete patience due to His perfect and complete Ability and Independence from His creation along with perfection and completeness in His Mercy and Kindness. Most blessed is the Most Merciful Provider Who there is none comparable and Who loves the patient and provides for all their needs.