章 43 Az-Zukhruf (The Ornaments of gold), 节 81

1. قُلْ إِنْ كَانَ لِلرَّحْمَٰنِ وَلَدٌ فَأَنَا أَوَّلُ الْعَابِدِينَ

   Say, (O Muhammad), "If the Most Merciful had a son, then I would be the first of (his) worshippers."

   43:81

Translation: Saheeh International