Surah Yunus (Jonah), Verse 68

قَالُوا اتَّخَذَ اللّٰهُ وَلَدًا سُبْحٰنَهٗ هُوَ الْغَنِیُّ لَهٗ مَا فِی السَّمٰوٰتِ وَمَا فِی الْاَرْضِ اِنْ عِنْدَكُمْ مِّنْ سُلْطٰنٍ بِهٰذَا اَتَقُوْلُوْنَ عَلَی اللّٰهِ مَا لَا تَعْلَمُوْنَ ۟

Qaalut takhazal laahu waladan Subhaanahoo Huwal Ghaniyyu lahoo maa fis samaawaati wa maa fil ard; in 'indakum min sultaanin bihaazaaa; a' taqooloona 'al allaahi maa laa ta'lamoon

“They say: "Allah hath begotten a son!" - Glory be to Him! He is self-sufficient! His are all things in the heavens and on earth! No warrant have ye for this! say ye about Allah what ye know not?”

Quran 10:68 (Yusuf Ali Translation)