Az-Zumar
تَنزِيلُ ٱلۡكِتَٰبِ مِنَ ٱللَّهِ ٱلۡعَزِيزِ ٱلۡحَكِيمِ
The revelation of this Book (the Quran) is from Allah, the All-Mighty, the All-Wise.
إِنَّآ أَنزَلۡنَآ إِلَيۡكَ ٱلۡكِتَٰبَ بِٱلۡحَقِّ فَٱعۡبُدِ ٱللَّهَ مُخۡلِصٗا لَّهُ ٱلدِّينَ
Verily, We have sent down the Book to you (O Muhammad SAW) in truth: So worship Allah (Alone) by doing religious deeds sincerely for Allah's sake only, (and not to show-off, and not to set up rivals with Him in worship).
أَلَا لِلَّهِ ٱلدِّينُ ٱلۡخَالِصُۚ وَٱلَّذِينَ ٱتَّخَذُواْ مِن دُونِهِۦٓ أَوۡلِيَآءَ مَا نَعۡبُدُهُمۡ إِلَّا لِيُقَرِّبُونَآ إِلَى ٱللَّهِ زُلۡفَىٰٓ إِنَّ ٱللَّهَ يَحۡكُمُ بَيۡنَهُمۡ فِي مَا هُمۡ فِيهِ يَخۡتَلِفُونَۗ إِنَّ ٱللَّهَ لَا يَهۡدِي مَنۡ هُوَ كَٰذِبٞ كَفَّارٞ
Surely, the religion (i.e. the worship and the obedience) is for Allah only. And those who take Auliya' (protectors and helpers) besides Him (say): "We worship them only that they may bring us near to Allah." Verily, Allah will judge between them concerning that wherein they differ. Truly, Allah guides not him who is a liar, and a disbeliever.
لَّوۡ أَرَادَ ٱللَّهُ أَن يَتَّخِذَ وَلَدٗا لَّٱصۡطَفَىٰ مِمَّا يَخۡلُقُ مَا يَشَآءُۚ سُبۡحَٰنَهُۥۖ هُوَ ٱللَّهُ ٱلۡوَٰحِدُ ٱلۡقَهَّارُ
Had Allah willed to take a son (or offspring or children), He could have chosen whom He pleased out of those whom He created. But glory be to Him! (He is above such things). He is Allah, the One, the Irresistible.