The Prohibition - 66:8
"O you who believe, repent sincerely to Allah so that your Lord may cover your evil deeds and admit you into Gardens beneath which rivers flow. Allah will not disgrace the Messenger and those who are with him on that Day. Their light will spread from their front to their right side and they will say: "Our Lord, complete our light for us and forgive us; You are the Almighty."
The rivers in Paradise:
Muhammad/47:15
This is the example of Paradise promised to the righteous: In it are rivers of pure water, rivers of milk whose taste does not spoil, rivers of intoxicants that give flavor to those who drink them, and rivers of strained honey. For them therein are all kinds of produce and forgiveness from their Lord. Will their condition be like that of those who are made to drink of boiling water which stays in the fire permanently and tears their bowels?