Quran english Az Zukhruf 81

قل إن كان للرحمن ولد فأنا أول العابدين

Qul in kana lirrahmaniwaladun faana awwalu alAAabideen

 
Sahih International
Say, [O Muhammad], “If the Most Merciful had a son, then I would be the first of [his] worshippers.”
Muhsin Khan
Say (O Muhammad SAW): “If the Most Beneficent (Allah) had a son (or children as you pretend), then I am the first of Allah’s worshippers [who deny and refute this claim of yours (and the first to believe in Allah Alone and testify that He has no children)].” [Tafsir At-Tabari].
Pickthall
Say (O Muhammad): If the Beneficent One hath a son, then, I shall be first among the worshippers. (But there is no son).
Yusuf Ali
Say: “If (Allah) Most Gracious had a son, I would be the first to worship.”
Shakir
Say: If the Beneficent Allah has a son, I am the foremost of those who serve.
Dr. Ghali
Say, “In case The All-Merciful has a child, then I am the first among the worshippers.