Al-Kahf (The Cave)
Surah 18 · Verse 27
And read that which has been communicated to you from the book of your Fosterer, there is none who can change His statements and you will never find any refuge beside Him.
Instructions are given regarding the study of the Quran, being in the company of the pious, avoiding glamour and sinners. The pious will be in paradise and the sinners in hell.
