My Cistern takes a month's journey to cross it. Its water is whiter than milk, its smell is nicer than musk,

The Prophet (may Allah's peace and blessings be upon him) reported that he will have a Cistern on the Day of Judgment whose length takes a month's journey to cross, and so does its breadth; its water is whiter than milk; its smell is more pleasant than the smell of musk; and its drinking cups are as numerous as the stars of the sky. Whoever drinks from that Cistern using these cups will never become thirsty.