Az-Zukhruf • EN-AL-JALALAYN
﴿ قُلْ إِن كَانَ لِلرَّحْمَٰنِ وَلَدٌۭ فَأَنَا۠ أَوَّلُ ٱلْعَٰبِدِينَ ﴾
“Say [O Prophet]: “If the Most Gracious [truly] had a son, I would be the first to worship him!””
Say ‘If the Compassionate One had a son hypothetically speaking I would have been first among the worshippers of that son; but it is established that He exalted be He does not have a child and thus there can be no worshipping of such a child.