(53) باب فِي الْحَوْضِ
Haritha said that he heard the Prophet saying that his Lake-Fount would be as large as the distance between Sana' and Medina. Al- Mustaurid said to Haritha, "Didn't you hear him talking about the vessels?" He said, "No." Al- Mustaurid said, "The vessels are seen in it as (numberless as) the stars."
Reference: Sahih al-Bukhari 6592
In-book reference: Book 81, Hadith 180
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 591