Chapter 16: The Book of Pilgrimage
Abu Huraira and Sa' d reported Allah' s Messenger (way peace be upon him) as saying: O Allah, bless the people of Medina in their mudd, the rest of the hadith being the same, and in It (this is also mentioned): " He wo intends to do harm to its people, Allah would efface him just as salt it dissolved in water."
Sahih Muslim 1387c