Musnad Ahmad 27:1721

Ya'qub narrated to us, 'Asim ibn Muhammad narrated to us, from his brother 'Umar ibn Muhammad, from Nafi', from Ibn 'Umar, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, before you is a basin (Hawd) the distance between which is like [the distance] between Jarba' and Adhruh. In it are pitchers like the stars of the sky. Whoever reaches it and drinks from it will never thirst after that, ever."