Sahih Muslim Book 30, Hadith Number 5700.

Chapter : The cistern of our Apostle (may peace be upon him) and its characteristics.

‘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.