Sahih Muslim
The Book Pertaining to the Excellent Qualities of the Holy Prophet (may Peace be upon them) and His Companions (Kitab Al-Fadail)
Book Number: 030 / Hadith Number: 5700
'Abdullah reported Allah's Messenger (may peace be upon him) as saying: There would be before you a Cistern (as extensive) as there is the distance between Jarba' and Adhruh and there would be jugs like stars in the sky; he who would come to that and drink from it would never feel thirsty after that.