سورة Al-Imran ( The Famiy of Imran ) - الآية 4

Aforetime, as a guidance to mankind, And He sent down the criterion [of judgement between right and wrong (this Quran)]. Truly, those who disbelieve in the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) of Allah, for them there is a severe torment; and Allah is All-Mighty, All-Able of Retribution.