Saeed bin Musayyib (may Allah be pleased with him) narrates from his father, who narrated from his grandfather, that once a flood came in Makkah which filled the space between the two mountains (with water).
Hadith Referenceمسند الإمام الشافعي / كتاب العيدين والأضاحي والاستسقاء / 530
Hadith Takhrijاسناده صحيح : اخرجه البيهقي في المعرفة السنن والآثار (2045)۔