Musnad Abu Ya'la al-Mawsili 248:3

Abu Hammam al-Walid ibn Shuja’ narrated to us, my father narrated to us, Ziyad ibn Khaythama narrated to us, from Simak ibn Harb, from Jabir ibn Samurah, from the Messenger of Allah (may Allah bless him and grant him peace), who said: "I am a forerunner for you at the Basin (al-Hawd). The distance between its two sides is like the distance between San’a and Ayla. The pitchers in it are like the stars."