قُلۡ إِن كَانَ لِلرَّحۡمَٰنِ وَلَدٞ فَأَنَا۠ أَوَّلُ ٱلۡعَٰبِدِينَ
Qul in kaana lir Rahmaani walad; fa-ana awwalul 'aabideen
English Translation
Say, [O Muhammad], "If the Most Merciful had a son, then I would be the first of [his] worshippers
— Saheeh International