7. Al-Araf (The Heights)

Surah: 7   Aya: 203

203. Wa-itha lam ta/tihim bi-ayatin qaloo lawla ijtabaytaha qul innama attabiAAu ma yooha ilayya min rabbee hatha basa-iru min rabbikum wahudan warahmatun liqawmin yu/minoona
  

  Translation

203. 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 Qur'ân) is nothing but evidences from your Lord, and a guidance and a mercy for a people who believe."