Az-Zukhruf • BN-TAFSEER-IBN-E-KASEER
﴿ 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!””
Please check ayah 43:89 for complete tafsir.