Quran english al a’raf 203

وإذا لم تأتهم بآية قالوا لولا اجتبيتها قل إنما أتبع ما يوحى إلي من ربي هذا بصائر من ربكم وهدى ورحمة لقوم يؤمنون

Wa-itha lam ta/tihim bi-ayatinqaloo lawla ijtabaytaha qul innamaattabiAAu ma yooha ilayya min rabbee hathabasa-iru min rabbikum wahudan warahmatun liqawminyu/minoon

 
Sahih International
And when you, [O Muhammad], do not bring them a sign, they say, “Why have you not contrived it?” Say, “I only follow what is revealed to me from my Lord. This [Qur’an] is enlightenment from your Lord and guidance and mercy for a people who believe.”
Muhsin Khan
And if you do not bring them a miracle [according to their (i.e. Quraish-pagans’) proposal], they say: “Why have you not brought it?” Say: “I but follow what is revealed to me from my Lord. This (the Quran) is nothing but evidences from your Lord, and a guidance and a mercy for a people who believe.”
Pickthall
And when thou bringest not a verse for them they say: Why hast thou not chosen it? Say: I follow only that which is inspired in me from my Lord. This (Qur’an) is insight from your Lord, and a guidance and a mercy for a people that believe.
Yusuf Ali
If thou bring them not a revelation, they say: “Why hast thou not got it together?” Say: “I but follow what is revealed to me from my Lord: this is (nothing but) lights from your Lord, and Guidance, and mercy, for any who have faith.”
Shakir
And when you bring them not a revelation they say: Why do you not forge it? Say: I only follow what is revealed to me from my Lord; these are clear proofs from your Lord and a guidance and a mercy for a people who believe.
Dr. Ghali
And when you do not come up to them with a sign, they say, “Why have you not selected it?” Say, “Surely I closely follow only what has been revealed to me from my Lord; these one evident demonstrations (i.e., demonstrations for beholders) from your Lord, and a guidance, and a mercy for a people who believe.”