Quran 39.18-20
Who hear advice and follow the best thereof. Such are those whom Allah guideth, and such are men of understanding. Is he on whom the word of doom is fulfilled (to be helped), and canst thou (O Muhammad) rescue him who is in the Fire? But those who keep their duty to their Lord, for them are lofty halls with lofty halls above them, built (for them), beneath which rivers flow. (It is) a promise of Allah. Allah faileth not His promise.