Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings be upon him): "Indeed, the length of my cistern is as much as the distance from Aylah to Sana'a, and by it are vessels as numerous as the stars in the sky."
Hadith Referenceصحیح ابن حبان / كتاب التاريخ / 6459
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «الظلال» (711): خ.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح