Abu Qasim ﷺ said, "Whoever intends harm against the people of this city," meaning Madinah, "Allah will melt him away as salt dissolves in water."
قال أبو القاسم ﷺ: من أراد أهل هذه المدينة بسوء( يعني المدينة) أذابه الله كما يذوب الملح في الماء.
Muslim narrated it in the chapter on Hajj (1368:492) through several routes, from Ibn Jurayj, who said, Abdullah bin Abdul-Rahman bin Yuhanis told me, from Abu Abdullah Qaraz, who said, "I bear witness regarding Abu Hurairah that he said," then he mentioned it.