Surat Al Isra' (39-40)

{ذَلِكَ مِمَّا أَوْحَى إِلَيْكَ رَبُّكَ مِنَ الْحِكْمَةِ وَلاَ تَجْعَلْ مَعَ اللّهِ إِلَهاً آخَرَ فَتُلْقَى فِي جَهَنَّمَ مَلُوماً مَّدْحُوراً} (الإسراء : 39 )

39- The good manners which We mentioned and the forbiddance of dispraised qualities are parts of the precise rulings revealed to you to command people with it. Do not associate others with Allah in worship so that you would not be thrown into Hell-Fire and cast from the mercy and favor of Allah. The address here is to the Messenger of Allah (peace be upon him) and warning to the Muslim nation, for monotheism is the top of creed, the beginning of everything, and warning against polytheism comes first.

{أَفَأَصْفَاكُمْ رَبُّكُم بِالْبَنِينَ وَاتَّخَذَ مِنَ الْمَلآئِكَةِ إِنَاثاً إِنَّكُمْ لَتَقُولُونَ قَوْلاً عَظِيماً} (الإسراء : 40 )

40- O ignorant polytheists, how do you say that angels are the daughters of Allah? Did Allah grant you males and assign females for Himself? How could you ascribe something you hate to your Lord; truly what you are saying is grievous.