Quran Quote  : 

Quran Ayats (Verses) regarding Saying Allah has Son is a grave sin

وَقَالُواْ ٱتَّخَذَ ٱللَّهُ وَلَدٗاۗ سُبۡحَٰنَهُۥۖ بَل لَّهُۥ مَا فِي ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِۖ كُلّٞ لَّهُۥ قَٰنِتُونَ

116. And they (the Nasara) said, "Allah has taken a son." Exalted is He! To Him belongs whatever is in the heavens and the earth. All are obedient to Him [234].

Surah Name : Al-Baqarah   Surah Number : 2   Ayat Number: 116

وَقَالُواْ ٱتَّخَذَ ٱلرَّحۡمَٰنُ وَلَدٗاۗ سُبۡحَٰنَهُۥۚ بَلۡ عِبَادٞ مُّكۡرَمُونَ

26. And they said, 'the Most Affectionate has taken for Himself a son'. Holy is He. Nay they are honoured bondsmen [39].

Surah Name : Al-Anbiya   Surah Number : 21   Ayat Number: 26

تَكَادُ ٱلسَّمَٰوَٰتُ يَتَفَطَّرۡنَ مِنۡهُ وَتَنشَقُّ ٱلۡأَرۡضُ وَتَخِرُّ ٱلۡجِبَالُ هَدًّا

90.It is near that the heavens may burst apart from it, and the earth may crack open, and the mountains may fall down in collapse.

Surah Name : Maryam   Surah Number : 19   Ayat Number: 90

وَقَالَتِ ٱلۡيَهُودُ عُزَيۡرٌ ٱبۡنُ ٱللَّهِ وَقَالَتِ ٱلنَّصَٰرَى ٱلۡمَسِيحُ ٱبۡنُ ٱللَّهِۖ ذَٰلِكَ قَوۡلُهُم بِأَفۡوَٰهِهِمۡۖ يُضَٰهِـُٔونَ قَوۡلَ ٱلَّذِينَ كَفَرُواْ مِن قَبۡلُۚ قَٰتَلَهُمُ ٱللَّهُۖ أَنَّىٰ يُؤۡفَكُونَ,

30. And the Jews said, "Uzair [71] is the son of Allah," and the Christians said, "Messiah [Isa] is the son of Allah." These are their claims with their mouths [72]. They imitate the statements of those who disbelieved before them [73]. May Allah curse them [74]. How are they deluded?

Surah Name : At-Tawbah   Surah Number : 9   Ayat Number: 30

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