Al-Mukhtasar
مَّا لَهُم بِهِۦ مِنْ عِلْمٍ وَلَا لِـَٔابَآئِهِمْ ۚ كَبُرَتْ كَلِمَةً تَخْرُجُ مِنْ أَفْوَٰهِهِمْ ۚ إِن يَقُولُونَ إِلَّا كَذِبًا ﴿٥﴾
These fabricators have no knowledge of their claim that Allah has a son and nor did their fathers whom they followed in this regard have any knowledge. This statement which has escaped their mouths without any understanding is heinous. They only speak a lie which has no basis or support.